СПОСОБ ОБНАРУЖЕНИЯ НАСЫЩЕННЫХ ПИКСЕЛОВ В ИЗОБРАЖЕНИИ

Изобретение относится к области техники обнаружения переэкспонированных или насыщенных областей в изображении. Технический результат заключается в обеспечении возможности точного обнаружения переэкспонированной области изображения с одновременным повышением точности последующей цветовой коррекции. Способ обнаружения насыщенных пикселов в изображении, цвета которого представлены цветовыми координатами, соответствующими различным цветовым каналам, содержащий этап, на котором обнаруживают пикселы, цвета которых имеют по меньшей мере одну цветовую координату, соответствующую одному из упомянутых цветовых каналов, которая превышает пороговое значение (thr; thg; thb) насыщенности для упомянутого цветового канала, отличающийся тем, что пороговые значения (thr; thg; thb) насыщенности для упомянутых цветовых каналов, соответственно, равны цветовым координатам (rw, gw, bw), представляющим оцененный источник (ILL) света упомянутого изображения, причём упомянутый оцененный источник света соответствует ...

Bildanzeigevorrichtung und Anzeigekorrekturverfahren

Die vorliegende Erfindung sieht eine Bildanzeigevorrichtung vor, die in der Lage ist, eine Farbveränderung eines angezeigten Bilds aufgrund von Veränderungen der Wellenlänge von von Lichtquellen emittiertem Licht zu verringern. Eine Bildanzeigevorrichtung enthält: eine Lichtquelleneinheit (110) enthaltend drei oder mehr Lichtquellen (111R, 111G, 111B), die Licht mit unterschiedlichen Wellenlängen emittieren, wobei die Lichtquelleneinheit die von den drei oder mehr Lichtquellen emittierten Lichtstrahlen kombiniert und das kombinierte Licht emittiert; und einen Wellenlängendetektor (134), der für jede der Lichtquellen Wellenlängeninformationen, die die Wellenlänge des von der Lichtquelle emittierten Lichts anzeigen, erfasst, wobei die Bildanzeigevorrichtung Intensitäten der Lichtstrahlen von den Lichtquellen auf der Grundlage von Beträgen von Änderungen der von dem Wellenlängendetektor erfassten Wellenlängen ändert, wodurch eine Farbe des durch die Lichtquelleneinheit kombinierten Lichts ...

Verfahren und Vorrichtung zur Farbkorrektur von Bildern

SYSTEM UND VERFAHREN ZUM HERSTELLEN EINES GLANZKIPPEFFEKTS UND AUFZEICHNUNGSMEDIUM MIT GLANZKIPPEFFEKT

Ein System und Verfahren zum Rendern von skalierbaren Glanzeffekt-Kippmustern auf einem Aufzeichnungsmedium durch Verwenden von zwei Farben, um einen Bereich mit einer relativ glatten Oberfläche bereitzustellen, während ein zweiter Bereich eine relativ rauhere Oberfläche aufweist. Ein dritter Bereich wird hinzugefügt, der aus einer anderen Farbe als die ersten beiden zusammengesetzt ist, wobei der dritte Bereich eine relativ glatte Oberfläche aufweist, wo es sich mit dem ersten Bereich überschneidet, und eine relativ rauhere Oberfläche, wo er sich mit dem zweiten Bereich überschneidet. Wenn das gerenderte Aufzeichnungsmedium um verschiedene Winkel gekippt wird, kippen die Bildmuster darauf, so dass sich der Kippeffekt ergibt.

FARBUMSETZUNGSVORRICHTUNG UND FARBUMSETZUNGSVERFAHREN

OUT-OF-GAMUT SCORE

A method for determining whether an image or color is out of gamut for a device. The method may include receiving a source image or color in a fist color space, the first color space corresponding to a first device, converting the image or color to a second color space, the second color space corresponding to a second device, converting the image or color back to the first color space to produce a converted image, comparing the source image or color and the converted image or color, and calculating an out-of-gamut score for the converted image or color. In some embodiments, an out-of-gamut score may be compared to a threshold value, and in some embodiments, the method may include notifying a user if the out-of-gamut score exceeds the threshold.

INFORMATION PROCESSING DEVICE, IMAGE FORMING APPARATUS and storage medium

The creation of the color lookup table

Image compensation apparatus

DISPLAY CORRECTION SYSTEM APPLIED FOR ENDOSCOPE AND THE CORRECTION METHOD THEREOF

Color changing device and method for changing color

The conventional color changing devices existed with the problems of generating non-colored components and brightness reduction during the color changing. The color changing device according to the present invention uses at least one of the color light, including red, blue, green, cyan, purple, and yellow, as the effective first argument; and, calculating the effective second argument in the color light domain for any one of the color light, including red to yellow, yellow to green, green to cyan, cyan to blue, blue to purple, and purple to red, for the matrix calculation. Because the calculation can generate new color data corresponding to the color data in red, green and blue, the method can prevent the generation of useless non-colored components, and brightness reduction to realize the color changing.

Print data generation apparatus performing color replacement on image data

In a print data generation apparatus, a print data generation apparatus generates print data. The print data includes post-replacement data obtained by the color replacement on pre-replacement data. The post-replacement data includes a plurality of post-replacement pixel values. Each post-replacement pixel value includes a plurality of post-replacement color components. In a case where a first residual amount of a first colorant is smaller than a second residual amount of a second colorant and a first consumption amount concerning the first colorant is larger than a second consumption amount concerning the second colorant, the color replacement on the pre-replacement data is performed so that a second post-replacement component corresponding to the second colorant is set to a first pre-replacement component value corresponding to the first colorant and the first post-replacement component corresponding to the first colorant is set to a pre-replacement component value other than the first ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM

In the image processing apparatus, a color gamut information storage unit stores terminal information, color gamut determination information and color gamut information in association with one another; an input image determination unit determines whether the input image is a standard color gamut image or a non-standard color gamut image based on the color gamut determination information acquired based on the terminal information; and a first color conversion unit converts the input image as determined to be the non-standard color gamut image into an output image suitable for a color gamut of a printing apparatus based on the color gamut information acquired based on the terminal information so that the input image printed by the printing apparatus may be equal in color to the input image displayed on the display unit of the terminal device. 1. An image processing apparatus , comprising:a color gamut information storage unit configured to store terminal information indicating a type of one or more terminal devices, color gamut determination information indicating whether a color gamut of a display unit of each corresponding terminal device is a standard color gamut or a non-standard color gamut that is not the standard color gamut, and color gamut information indicating a color gamut of the display unit of each corresponding terminal device in association with one another;an input image acquisition unit configured to acquire an input image;a terminal information acquisition unit configured to acquire terminal information indicating the type of a terminal device that has input the input image;an input image determination unit configured to acquire the color gamut determination information stored in association with the terminal information acquired by the terminal information acquisition unit from the color gamut information storage unit based on the acquired terminal information, and determine whether the input image is a standard color gamut image of the standard ...

Image processing apparatus, image processing method, and non-transitory recording medium storing image processing program

An image processing apparatus for causing a printer to perform printing includes: a memory storing a color profile including a plurality of corresponding relationships between color values being coordinate values in a color space and recording material values corresponding to respective amounts of recording materials used; and a processor configured to cause the printer to print a color chart. The processor obtains a plurality of specific recording material values being the recording material values corresponding to specific color values being coordinate values of the color space in accordance with the plurality of corresponding relationships included in the color profile, and causes the printer to print the color chart including patches having the corresponding amounts of the individual specific recording material values used.

CHARACTERISTICS BASED OPERATION OF IMAGE FORMING APPARATUS

An image forming apparatus is provided. The image forming apparatus includes a communicator to receive print data, an image forming unit to print the received print data, and a processor to, in response to the received print data being a scan file, control the image forming unit to perform image processing with respect to the scan file and print the image-processed scan file.

Image forming apparatus

An image forming apparatus includes a conversion unit, a correction unit, an image forming unit, a measurement unit, first, second, and third generation units, a reading unit, an input unit, and a determination unit. Image data of a color components indicating one pixel based on a multidimensional table is converted and then corrected based on one-dimensional tables corresponding to the color components. An image is formed on a sheet based on the corrected image data. A measuring image formed on the sheet is measured. The multidimensional table can be generated based on a multi-color first measuring image. The one-dimensional table can be generated based on a second measuring image. A pattern image formed on the sheet is read. The one-dimensional table can be generated based on a pattern image for each of the color components on the sheet. Input user instructions indicated how the one-dimensional table is generated.

IMAGE PROCESSING APPARATUS, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM

An image processing apparatus has a first color conversion unit that converts a signal value at an achromatic grid point in a first color space among achromatic grid points in a color space, the signal value being closer to white than a first predetermined signal value, into a signal value that is even closer to white, and a second color conversion unit that converts a signal value at a grid point among grid points in the color space, the signal value being closer to white than a second predetermined signal value, into white are provided. The image processing apparatus converts a signal value of an input image using the first color conversion unit, and thereafter converting the signal value using the second color conversion unit. 1. An image processing apparatus comprising:a first color conversion unit configured to convert a signal value at an achromatic grid point in a first color space among achromatic grid points in a color space, the signal value being closer to white than a first predetermined signal value, into a signal value that is even closer to white;a second color conversion unit configured to convert a signal value at a grid point among grid points in the color space, the signal value being closer to white than a second predetermined signal value, into white; anda control unit configured to perform control for converting a signal value of an input image using the first color conversion unit, and thereafter converting the signal value using the second color conversion unit,wherein the signal value that is even closer to white obtained by the conversion performed by the first color conversion unit is a signal value that is closer to white than the second predetermined signal value.2. The image processing apparatus according to claim 1 , wherein the first color conversion unit includes a three-dimensional look-up table claim 1 , and the second color conversion unit includes a one-dimensional look-up table.3. The image processing apparatus according to ...

DEVICE LINK PROFILE ADJUSTMENT METHOD, DEVICE LINK PROFILE ADJUSTMENT APPARATUS, AND DEVICE LINK PROFILE CREATION METHOD

A device link profile adjustment method of a computer carrying out a process of adjusting a device link table in a device link profile expressing a correspondence relationship between a first coordinate value of a first device-dependent color space and a second coordinate value of a second device-dependent color space, the method including: accepting an adjustment target at an adjustment point, using a coordinate in a profile connection space as a reference; and adjusting the device link table based on the adjustment target and a color conversion table including a device-independent coordinate value of the profile connection space of an original profile used to create the device link table.

COLOR PREDICTION MODEL CREATION DEVICE, COLOR PREDICTION MODEL CREATION SYSTEM AND COLOR PREDICTION MODEL CREATION METHOD

A color prediction model creation device configured to create a color prediction model for predicting color values of a device-independent color system from an ink amount set includes: a first color prediction model creation unit configured to acquire a first spectral reflectance of a color chart printed on a first printing medium by using a first ink amount set, and create a first color prediction model for the first printing medium by learning a correspondence relationship between the first ink amount set and the first spectral reflectance; and a second color prediction model creation unit configured to acquire a second spectral reflectance of a color chart printed on a second printing medium by using a second ink amount set having a smaller number of combinations than that of the first ink amount set, and create a second color prediction model for the second printing medium by learning using the second ink amount set, the second spectral reflectance and the first color prediction model ...

IMAGE PROCESSING APPARATUS AND COLOR SEPARATION PROCESSING METHOD

In color separation processing by a method that combines a multidimensional LUT and interpolation processing, smooth gradation is implemented by reducing errors accompanying interpolation processing. An image processing apparatus includes a color separation processing unit configured to perform, by interpolation processing using a lookup table having a plurality of dimensions in accordance with signal components of an input image, color separation of an input value that is each pixel value of the input image into an output value corresponding to each of signal components handled by an output device, and each grid point of the lookup table is associated with information representing change characteristics at each portion between adjacent grid points for each dimension of the plurality of dimensions, and in the color separation processing, the interpolation processing is performed based on the information representing the change characteristics.

Determination of tone value increase from a printed image

Systems and methods for analyzing printed images are provided. One system includes a processing circuit configured to: determine a set of one or more locations on the printed image on the substrate to measure color values; determine a set of input tone values for the at least one ink; receive a set of measured color values corresponding to the set of locations on the printed image from a sensor; and determine a tone value increase error based on the set of measured color values and the set of input tone values. The at least one processing circuit is configured to determine the tone value increase error without requiring measured color values from an area having solid ink.

Color table compression

In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.

Automatic color saturation enhancement

A method of processing a digital color image comprising the steps of: providing a digital color image having pixels and a plurality of color channels; processing the image to provide a channel independent restored digital image; determining at least one predictor derived from the channel independent restored digital image or the digital color image; determining a channel interdependent color boost relationship from the at least one predictors; and applying the color boost relationship on a pixel by pixel basis to the respective channels of the digital color image to produce a processed digital color image.

Determination of tone value increase from a printed image

Systems and methods for analyzing printed images are provided. One system includes a processing circuit configured to: determine a set of one or more locations on the printed image on the substrate to measure color values; determine a set of input tone values for the at least one ink; receive a set of measured color values corresponding to the set of locations on the printed image from a sensor; and determine a tone value increase error based on the set of measured color values and the set of input tone values. The at least one processing circuit is configured to determine the tone value increase error without requiring measured color values from an area having solid ink.

METHOD AND APPARATUS FOR PRINTING IN GRAYSCALE

A method, apparatus and non-transitory computer readable medium for printing in grayscale are disclosed. For example, the method includes receiving a source profile of a color image, converting the source profile into a device specific color space profile, converting the device specific color space profile into a grayscale device specific color space profile that only has black separation values for each output node using a destination profile that is device specific and printing the color image in a grayscale using the grayscale device specific color profile that reproduces a tone of each color of the source profile of the color image. 1. A method for printing in grayscale , comprising:receiving, by a processor, a source profile of a color image;converting, by the processor, the source profile into a device specific color space profile;converting, by the processor, the device specific color space profile into a grayscale device specific color space profile that only has black separation values for each output node using a destination profile that is device specific, wherein the destination profile comprises a first table for converting a device specific color space to a device independent color space and a second table for converting only k values of the device specific color space to the device independent color space using only a lightness value of the device independent color space, wherein the device independent color space comprises an L*, a*, b* color space, wherein L* represents the lightness value and a* and b* represent a chroma coordinate value of a corresponding color in the source profile; andprinting, by the processor, the color image in a grayscale using the grayscale device specific color space profile that reproduces a tone of each color of the source profile of the color image.2. The method of claim 1 , wherein the source profile comprises a red claim 1 , green claim 1 , blue color profile.3. (canceled)4. (canceled)5. The method of claim 1 , ...

IMAGE OUTPUT DEVICE, IMAGE RECEIVING DEVICE, AND IMAGE TRANSMISSION METHOD

An image output device, an image receiving device, and an image transmission method are provided. The image transmission method includes the following. A source image is transformed into an augmented image by an image output device. The source image includes M source pixels and the augmented image includes N augmented pixels. The augmented image is received by an image receiving device. The augmented image is transformed into the source image. M is less than N.

Image forming apparatus, method of controlling the same, and storage medium

An image forming apparatus that executes hidden-surface elimination can output an image containing an undercoat desired by a user. The image forming apparatus includes an elimination unit that eliminates a region included in a region of a second drawing object in a layer below a first drawing object and overlapping the first drawing object. The first drawing object is contained in an intermediate data which is generated based on page description language data. In a case where the second drawing object is not a drawing object indicating an undercoat image, the elimination unit eliminates the region included in the region of the second drawing object and overlapping the first drawing object. In a case where the second drawing object is a drawing object indicating an undercoat image, the elimination unit does not eliminate the region included in the region of the second drawing object and overlapping the first drawing object.

METHOD AND APPARATUS FOR CODING AND DECODING DATA

A system and method are provided for correcting printed color and tone of a library of similar digital images. A single image (20) is selected from a library (10) of similar images, and manipulated with a set of unique transformations. Each of the manipulated images is processed for printing. Printer settings for actual job data are identified, and multiple reproductions of the selected image are printed at the identified printer settings for the job. Optimum transformations are determined by visual inspection of a full array of images, each of the full array of images having been manipulated by a different transformation prior to printing.

COLOR CORRECTION SYSTEM AND METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a system and a method of executing color correction for color image data. SOLUTION: The color correction system is provided with a means for receiving a first color signal including first color data containing data associated with each of a plurality of first colors, a means for generating a threshold signal representing the test of the value of data of one item of selected first color data for the selected threshold, and a means for selectively generating a color correction signal as a function between the data value from the one item of first selected color and at least the value of one item of second selected color in response to the threshold signal. This function is selected so that the size of the color correction signal may be determined by the degree of approximation to a value of the first color adjacent to that of one value designated from among the first colors. COPYRIGHT: (C)2006,JPO&NCIPI ...

УСТРОЙСТВО ОБРАБОТКИ ИЗОБРАЖЕНИЙ И СПОСОБ ОБРАБОТКИ ИЗОБРАЖЕНИЙ

Изобретение относится к средствам корректировки цвета выводимого с принтера изображения. Техническим результатом является предотвращение снижения точности коррекции многоцветной калибровки изображения. Устройство содержит блок формирования изображения; измерительный блок; блок управления одноцветной и многоцветной калибровкой; блок выбора, выбирающий, обеспечивать ли выполнение одноцветной калибровки или многоцветной калибровки; блок управления отображением, выполненный с возможностью, в случае, когда выбрано обеспечение многоцветной калибровки, отображения экрана с запросом, обеспечивать ли одноцветную калибровку перед тем, как многоцветная калибровка будет выполнена. 2 н. и 18 з.п. ф-лы, 14 ил.

СПОСОБ ОБНАРУЖЕНИЯ НАСЫЩЕННЫХ ПИКСЕЛОВ В ИЗОБРАЖЕНИИ

Gamut mapping

Optimizing detection of images in relation to targets based on colorspace transformation techniques

Method of creating a colour barcode, comprising: generating a histogram 218 from an image 215 of an environment; determining the most prevalent colours associated with the environment from the histogram by mapping the most prevalent colours to a first colour-space 224 and converting the colour-space to a second colour-space 228; determining, in the second colour-space, coordinates a1-a4 of the most prevalent plurality of colours and therefrom coordinates b1-b4 of a related plurality of colours; and generating a colour matrix barcode using the related plurality of colours. The related colours may include colours absent or least prevalent in the environment. Additional colours, located between the most prevalent colours and related colours may be determined and used in the matrix barcode. The first colourspace may be the red-green-blue (RGB) colour space. The second colour-space may have a luminance channel Y (e.g. HSV). The luminance channel may be removed from the second colour-space 228 ...

Method for color correction of digital images

Image-processing apparatus and image-processing method

Profile adjustment method, profile adjustment apparatus, and profile adjustment system

Based on source Image color gamut of the color gamut matching method

INFORMATION PROCESSING DEVICE AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An information processing device includes a processor configured to acquire image data including color information, acquire color information of a formed image, the formed image being an image formed on a recording medium on a basis of the image data, acquire light transmittance information expressing a degree of light transmittance of an image-carrying medium, the image-carrying medium being the recording medium on which the formed image is formed, and associate first color information, second color information, and the light transmittance information with each other, the first color information being the color information included in the image data and the second color information being the color information of the formed image. 1. An information processing device comprising:a processor configured toacquire image data including color information,acquire color information of a formed image, the formed image being an image formed on a recording medium on a basis of the image data,acquire light transmittance information expressing a degree of light transmittance of an image-carrying medium, the image-carrying medium being the recording medium on which the formed image is formed, andassociate first color information, second color information, and the light transmittance information with each other, the first color information being the color information included in the image data and the second color information being the color information of the formed image.2. The information processing device according to claim 1 , whereinthe processor is configured toacquire color information of pixels forming the image data as the first color information,acquire color information of formed pixels as the second color information, the formed pixels being pixels formed on the image-carrying medium on a basis of the first color information,acquire information about a degree of light transmittance at locations where the formed pixels are formed on the image-carrying medium as the ...

System and method for rendering gloss effect image patterns on a recording medium

Gloss effect image patterns are created by creating a solid color background and overprinting the solid color background with the glossmark. In creating the glossmark, a background base of an electronic image region is painted with a solid color corresponding to a color of a marking material; using a first electronic pattern ink, a background of the electronic image region is painted without knocking out the solid color of the background base of the electronic image region; and using a second electronic pattern ink, a foreground in the electronic image region is painted without knocking out the solid color of the background base of the electronic image region such that a pattern in the rendered image area is only visible when a predetermined angle between an observer's viewing angle and an angle of illuminating the rendered recording medium by an illumination source is realized.

SYSTEM TO ENABLE DEVELOPMENT AND USAGE OF FIFTH COLOR SEPARATION FORMS

One embodiment of the disclosure relates to a method for creating a document print stream. The method includes receiving a first image in a first color model. The method includes generating a modified first image by extending original separation channels in the first image to include a fifth separation channel. The method includes generating a bitmap of the modified image. The method includes storing the modified image as a separation form. The method includes receiving a print job in the first color model. The method includes merging the separation form with the print job.

Image processing apparatus and recording medium for correcting a captured image

An image processing apparatus includes: a dividing process section (122) configured to divide a captured image into a plurality of partial images; a histogram creating section (123) configured to create a histogram representing a distribution of the number of pixels for density values with respect to each color component of each of the partial images; an adjustment value calculating section (124) configured to determine, for each of the partial images, an adjustment value based on a peak in the histogram; an adjusting section (127) configured to generate, for each of the partial images, tone correction data by replacing a specific input value in reference data with the adjustment value; and a correction process section (128) configured to generate a corrected image by tone-correcting each of the partial images with use of the tone correction data.

System and method for color matching

A system for analyzing and processing user input and providing a result based on a predetermined set of color identifiers, the system comprising a first user input, wherein the first user input comprises of one or more digital images, a second user input, wherein the second user input comprises of responses to queries, a white balancing method for removing color casts from the first user input to create a final corrected image of the first user input, a first database for storing a predetermined set of color identifiers, a second database for storing product profiles, and a processor for analyzing the final corrected image of the first user input and the second user input collectively, comparing the final corrected image of the first user input and the second user input collectively to the predetermined set of color identifiers, and providing a color output.

Color correct imaging

Systems and methods for providing remote approval of an image for printing are provided. One system includes a processing circuit in communication with an image capturing device that is configured to capture an image of a printed product. The processing circuit is configured to process the captured image into a processed image accurate to within a tolerance in a color space to indicate the visual appearance of one or more colors. The color space is a standardized color space, such as sRGB or CIELAB. The processing circuit is further configured to transmit the processed image to a display located remote from the image capturing device and to receive an input signal from a remote input device to allow a user to approve or reject the displayed processed image for printing on a print device.

IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREFOR

An image processing apparatus divides an input image into a plurality of band area images, stores the respective band area images in a band memory, and performs image processing. The apparatus comprises: a storage unit configured to store filter coefficients having a two-dimensional reference area of M pixels in a first direction and N pixels in a second direction orthogonal to the first direction; and a spatial filter unit configured to apply, to the band area image stored in the band memory, a spatial filter using the filter coefficients. The filter coefficients are set as the filter coefficients so as to refer to pixels for every K pixels in the second direction, and the spatial filter unit sequentially applies the spatial filter to the band area image K times in the second direction. 1. An image processing apparatus for dividing an input image into a plurality of band area images so that each band area partially overlaps an adjacent band area , successively storing the respective band area images in a band memory , and performing image processing , the apparatus comprising:a storage unit configured to store filter coefficients having a two-dimensional reference area of M pixels in a first direction and N pixels in a second direction orthogonal to the first direction; anda spatial filter unit configured to apply, to the band area image stored in the band memory, a spatial filter using the filter coefficients,wherein coefficients are set as the filter coefficients so as to refer to pixels for every K pixels in the second direction, andthe spatial filter unit sequentially applies the spatial filter to the band area image K times so that sampling phases by the filter coefficients for the band area image are mutually different in the second direction.2. The apparatus according to claim 1 , whereincoefficients are further set as the filter coefficients so as to refer to pixels for every L pixels in the first direction, andthe spatial filter unit sequentially applies ...

REPRODUCTION COLOR PROFILE CORRECTION DEVICE, REPRODUCTION COLOR PROFILE CORRECTION METHOD, REPRODUCTION COLOR PROFILE CORRECTION PROGRAM, AND COMPUTER-READABLE MEDIUM INCLUDING REPRODUCTION COLOR PROFILE CORRECTION PROGRAM

A reproduction color profile correction system includes, a differential colorimetric value calculator which calculates a differential colorimetric value that is a difference between a predicted colorimetric value and a measured colorimetric value, the predicted colorimetric value being a colorimetric value of a predicted reproduction color corresponding to a process ink combination of an ink combination, and a measured colorimetric value being a colorimetric value obtained by measuring a reproduction color in a color chart corresponding to the process ink combination, and a colorimetric value corrector which corrects, by using the differential colorimetric value, a predicted colorimetric value of a reproduction color reproduced by the ink combination.

System and method for estimating continuous tone values from rendered binary input

A method and system for estimating continuous tone values associated with input pixels in a color image are provided. The method includes receiving binarized halftone image data representing a color image, wherein the color image has a plurality of input pixels; and estimating the continuous tone values associated with each of the input pixels by: establishing a window comprising a pixel of interest and neighboring pixels in the binarized halftone image data, wherein the window comprises a plurality of sub-window's and wherein each sub-window has a plurality of predetermined number of rows and columns of pixels; and processing the binarized halftone image data in both a process direction and a cross-process direction using the window such that the processing is performed for one of the pixels in each of the rows within the sub-window and the processing is skipped for the remaining pixels in that row of that sub-window.

СПОСОБ ВЫДЕЛЕНИЯ ЦВЕТА

... 1. Способ выделения цвета в системе обработки цвета, содержащий определение относительной величины каждого из компонентов цвета при разделении цветов, определение для субтрактивного цветового пространства, разности величин среднего компонента цвета и наименьшего компонента цвета и для аддитивного цветового пространства, разности величин наибольшего компонента цвета и среднего компонента цвета, и выделение и регулировку величины одного или нескольких компонентов цвета, как функции определенной разности среднего компонента цвета и наименьшего компонента цвета для субтрактивного цветового пространства, и как функции определенной разности наибольшего компонента цвета и среднего компонента цвета для аддитивного цветового пространства. 2. Способ по п.1, отличающийся тем, что регулировку осуществляют пропорционально относительному значению разности. 3. Способ по п.1, отличающийся тем, что значение компонента цвета регулируют только, если разность величин превышает заранее установленное значение ...

System and method for endoscope callibration

System and method for endoscope calibration

A system and method are described for calibrating an endoscope having the camera and the light source close to each other in an enclosed environment. In one embodiment of the present invention there is a colour chart plate 1 provided, which has a reflective surface, has radially extending colour patches, and a circular central achromatic bright central field that can handle the automatic gain control of the camera. The colour chart can be mounted into a container unit 20 having mechanically connected holders 22, 23 to support the endoscope arm. Each colour patch may have a black or white contour edge and be removable from the container. The method of calibrating the colour involves aligning the cameras field of view with the colour chart, adjusting the size of the beam, extracting colour values and calculating correction values.

Gamut mapping

Gamut mapping is applied to a pixel to convert input component values (e.g. RGB values, from an image sensor) of the pixel to corresponding output pixel component values (e.g. suitable for a more limited gamut display). The input component values have a first valid range which includes some negative (-ve) values; output component values have a second valid range which does not include negative values. A gamut mapping unit determines whether a first input component value of the pixel is negative, and if so: (i) applies an adjustment to that component value such that it is not negative (e.g. sets it to zero, S406); and (ii) adjusts one or more other input component value(s) of the pixel based on the adjustment applied to the first input component value to compensate for the adjustment applied to the first input component value. The output component values of the pixel are based on the adjusted input component values of the pixel. Adjustment may ensure 2D vector sums of input and adjusted ...

Method of color accentuation

METHOD FOR COLOR CORRECTION OF DIGITAL IMAGES

Method and apparatus for brightness-controlling image conversion

A method and an apparatus for brightness-controlling image conversion.. The method includes converting an input image of a first non-linear color space into a second linear color space; determining a brightness control ratio; adjusting channels of the second linear color space according to the brightness control ratio; converting the second linear color space into the first non-linear color space to form an output image.

Method, apparatus and system for determining a luma value

... - 39 Abstract METHOD, APPARATUS AND SYSTEM FOR DETERMINING A LUMA VALUE A method of determining a luma value from 4:4:4 RGB video data for encoding chroma downsampled 4:2:0 YCbCr video data into a bitstream. A location, in a colour 5 space defined by linear luminance and non-linear 4:2:0 chroma values, is determined from the RGB video data. A region that contains the determined location is determined, the region being one region of a plurality of regions located in the colour space and having a plurality of associated coefficients. One or more of the coefficients associated with the determined region are selected, the selected coefficients being used to map the linear 10 luminance and non-linear 4:2:0 chroma values to a luma value that compensates for a luminance shift introduced by chroma downsampling of the non-linear 4:2:0 chroma values. The method then determines the luma value for encoding into the bitstream according to a function of the selected coefficients and the determined location ...

LOCAL COLOR RANGE SELECTION

Techniques of editing images using a digital image editing tool involve defining a local adjustment that includes, as separate masks, a spatial mask and a range mask. The spatial mask specifies a region of the image to be adjusted and the range mask specifies ranges of colors and tones to be adjusted independent of the region specified by the spatial mask. In applying these masks, when a user changes a setting in the digital image editing tool, the digital image editing tool weights the effect of the setting according to the values of the spatial mask and the range mask for each pixel of the image. Editing Computer 120 Photographic Equipment Network Interface 122 172 Processing Units 124 Memory 126 Image Acquisition Image Data132 Manager130 Spatial Mask Manager Spatial Mask Data 142 Pixel ID Data 144 Mask Value Data Range Mask Manager Range Mask Data152 150 Range Type Data Display 180 Mask 154 Normalization Manager 151 Range Data 156 Mask Value Data Non-Volatile Memory Raw Image File Spatial ...

METHOD OF DIGITAL IMAGES COLOR SEPARATION INTO TWO COLORED AND BLACK INKS FOR PRINTING WITH FOUR AND MORE INKS

A method for separating the colours of a digital image into two coloured inks and black ink for four or more colour printing, in which a digital image of an original is converted into coordinates of an opponent colour space of a print (17) according to base vectors of the paper and of the coloured inks, and vectors of the relative application of said inks to the print. In the opponent colour space of the print, the colour coordinates of base vectors of the paired application of two adjacent coloured inks are determined on a CaS chromaticity diagram of the colour characteristics of N coloured printing inks, wherein each colour of the original is characterized by one achromatic and two chromatic coordinates. The colours that fall in the colour gamut of the printing inks are separated into N sectors (12, 13, 14), each group of colours of the image of the original is separated into two coloured inks, which correspond on the CaS chromaticity diagram to a selected sector of the colours of paired ...

IMAGE COMPRESSION

The invention provides methods that improve image compression and/or quality within the JPEG process by using a low-pass filter to remove high frequency components from image data, which removes blocking artifacts. Preferred embodiments apply the low-pass filter to the Chroma components after decompression prior to conversion into RGB color space.

RGB (red, green and blue) color space and gamut conversion method, device and liquid crystal display

이미지 처리 장치, 이미지 처리 시스템 및 이미지 처리 방법

... 이미지 처리 장치는, 입력 이미지 데이터로부터 변환 영역을 추출하는 영역 추출 유닛; 변환 영역으로부터 색 정보를 획득하는 색 정보 획득 유닛; 색 정보에 대하여 변환의 목표인 목표 색 정보를 획득하는 목표 색 정보 획득 유닛; 색 정보 및 목표 색 정보에 기초하여 변환 정보를 생성하고, 변환 정보에 기초해 색 정보를 변환하여 변환된 이미지 데이터를 생성하는 변환 유닛; 입력 이미지 데이터 및 변환된 이미지 데이터를 표시하고, 색 정보에 대하여 변환의 최종 목표인 최종 변환 목표의 입력을 수신하는 표시 및 입력 유닛; 및 최종 변환 목표에 기초하여 최종 변환 정보를 생성하고, 최종 변환 정보에 기초해 색 정보를 변환하여 최종 이미지 데이터를 생성하는 최종 변환 유닛을 포함한다.

ADJUSTMENT DEVICE AND METHOD FOR THE COLOUR CORRECTION OF DIGITAL IMAGE DATA

An adjustment device for the correction of colour values of digital image data has a computing unit, which, in terms of program technology, is set up for calculating secondary colour values from primary colour values. The primary colour values are related to the first representation means and the secondary colour values are related to a second representation means. The adjustment device comprises a memory containing a table in which each primary colour value is assigned a secondary colour value. An interpolation stage is provided, which calculates by interpolation secondary colour values for such primary colour values which are not contained in the table. Furthermore, a method for calculating an assignment table between primary and secondary colour values is proposed.

Look-up table generation method, computer program, and imaging apparatus

Upon generating a look-up table data used to retouch and color-convert arbitrary image data imaged by an imaging apparatus, when the saturation value of source image data is equal to or smaller than a predetermined threshold value, new image data which undergoes tinting correction of achromatic colors by multiplying the saturation value of the retouched image data by a correction coefficient calculated from the saturation values of the source image data and retouched image data is generated. Then, a look-up table is generated using the source image data and the new third image data which is free from any tinting of achromatic colors. Upon generating a look-up table for color conversion, new image data which undergoes tinting correction of achromatic colors by converting grid point storage values stored at grid points representing achromatic colors of a basic look-up table into achromatic color data is generated, and a look-up table is generated using the source data and the new image data ...

Digital image optimization through multiple on-press selections

A system and method are provided for correcting printed color and tone of a library of similar digital images. A single image is selected from a library of similar images, and manipulated with a set of unique transformations. Each of the manipulated images is processed for printing. Printer settings for actual job data are identified, and multiple reproductions of the selected image are printed at the identified printer settings for the job. Optimum transformations are determined by visual inspection of a full array of images, each of the full array of images having been manipulated by a different transformation prior to printing.

Optimal color rendition using spot colors during printing

A print job is analyzed to determine what page locations can use optional colors and different image quality increase values of different optional colors at the page locations are calculated. Only one of the optional colors is selected, based on which optional color produces the highest print job image quality increase for all of the page locations of the print job. Each individual page of the print job is evaluated to determine if use of the selected optional color increases image quality of the individual page to identify page exceptions. Instructions to mount a selected replaceable printing module corresponding to the selected optional color are displayed, and the print job is printed using the selected replaceable printing module.

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

An image processing apparatus comprises: an obtaining unit that obtains a luminance of an input image having a color reproduction range wider than that of a printing apparatus; a conversion unit that performs, for the input image, conversion processing of obtaining a value included in the color reproduction range of the printing apparatus and obtaining the luminance of the image after the conversion; and a correction unit that corrects the luminance of the input image, wherein the correction unit performs correction of the luminance of the input image based on a conversion characteristic between the obtained luminance and the obtained luminance such that an intensity of the correction becomes higher for a color that is not included in the color reproduction range of the printing apparatus than for a color included in the color reproduction range of the printing apparatus.

IMAGE PROCESSING APPARATUS AND COMPUTER PROGRAM

An image processing apparatus includes: a controller performs: acquiring first original image data generated by optically reading a first document; acquiring first corrected image data generated by executing first correction processing; calculating a feature amount indicative of a difference between the first original image data and the first corrected image data; determining a correction parameter indicative of the specific color by using the calculated feature amount; acquiring second original image data generated by optically reading a second document different from the first document, and generating second corrected image data by executing second correction processing for the second original image data, wherein the second correction processing is processing of changing the pixel value indicative of the specific color specified by using the determined correction parameter into the pixel value indicative of the color different from the specific color.

COLOR CONVERSION INFORMATION GENERATING APPARATUS AND METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

A color conversion information generating apparatus includes the following elements. A specific color value obtaining unit obtains a specific color value of a device-dependent color space. A first color element value obtaining unit obtains a first color element value of a device-independent color space by converting the specific color value in accordance with color reproduction characteristics of a display device displaying an image of a subject. A second color element value obtaining unit obtains a second color element value of the device-independent color space by converting a colorimetric value of a color sample which approximates to the specific color value on the basis of a reference value. A generating unit generates, if the first color element value approximates to the second color element value, color conversion information for converting plural color values of the device-dependent color space into plural color values of the device-independent color space.

Global tone mapping

A system accesses an image with each pixel of the image having luminance values each representative of a color component of the pixel. The system generates a first histogram for aggregate luminance values of the image, and accesses a target histogram for the image representative of a desired global image contrast. The system computes a transfer function based on the first histogram and the target histogram such that when the transfer function is applied, a histogram of the modified aggregate luminance values is within a threshold similarity of the target histogram. The system modifies the image by applying the transfer function to the luminance values of the image to produce a tone mapped image, and outputs the modified image.

Matching output colors of printers having different gamut ranges

Printers can be desirably color matched irrespective of whether or not a specified color is a color in the gamut range. A client device 100 determines by a gamut range evaluator 232 whether or not a specified color is a color in the gamut range, which is the range of colors a second printer 50 can reproduce; causes a color chart data generator 235 to generate image data for producing a color chart referenced to the specified color when the specified color is a color in the gamut range; and causes the generator to select a color on the gamut surface based on the specified color when the specified color is a color outside the gamut range, and generate the image data to create the color chart referenced to the selected color.

Image processing apparatus and computer program

An image processing apparatus includes: a controller configured to perform: acquiring original image data representing an original image and corrected image data representing a corrected image, the corrected image data being generated by executing specific correction processing on the original image data; calculating a first index value and a second index value, the first index value relating to a color distribution of the original image by using the original image data, and the second index value relating to a color distribution of the corrected image by using the corrected image data; and determining which processing, among a plurality of processing candidates that are executable by the image processing apparatus, corresponds to the specific correction processing, based on comparison of the calculated first index value and the calculated second index value.

Profile creation method and computer readable recording medium stored with profile creation program

The profile creation method creates a color conversion profile for a printer by causing the printer to output a color chart including patch images having colors corresponding to combinations of values of a plurality of basic colors. The method includes extracting a pair of grid points adjacent to each other from among grid points of a lookup table indicating a correspondence relationship between the values of the colors of the patch images and colorimetric values of the patch images, and performing an interpolation process according to a degree of color variation in two patch images corresponding to the pair of grid points obtained from data of colorimetric values accumulated regarding the two patch images to obtain a grid point for interpolation between the pair of grid points.

Image processing apparatus, image processing method, and program

An image processing apparatus according to the present invention includes an image forming unit configured to form an image, a measuring unit configured to measure the formed image, a control unit configured to control execution of a single-color calibration to be performed to correct reproduction characteristics of a single-color formed by the image forming unit based on a measuring result of a single-color image formed with a single-color recording agent and execution of a multi-color calibration to be performed to correct reproduction characteristics of a multi-color image formed by the image forming unit based on a measuring result of a multi-color formed with a plurality of recording agents, and a selection unit configured to select whether to cause the control unit to perform the multi-color calibration after completing the single-color calibration or cause the control unit to perform any one of the single-color calibration and the multi-color calibration.

IMAGE DISPLAY APPARATUS AND DISPLAY CORRECTION METHOD

An image display apparatus includes: a light source unit including three or more light sources, combining lights from the light sources and emitting the combined light; a wavelength detector that detects, for each light source, wavelength information indicating the wavelength of light from the light source; a color value determiner that determines, for each light source, from the wavelength information, a color value indicating a color of light from the light source in a predetermined color space; a correction value determiner that determines, based on the color values, a correction value for correcting a ratio between the intensities of lights from the light sources so that the color of the combined light is a color to be displayed; and a driver that drives the light sources so that the ratio between the intensities of lights from the light sources is a ratio corrected based on the correction value.

IMAGE DATA CLUSTERING AND COLOR CONVERSION

Methods and systems herein provide for color conversion of image data to another color space. Such color conversion includes converting image data to a color space by identifying color regions in the image data. One color conversion system herein includes a color region identifier operable to select color values in the image data, determine numerical centers of the selected color values, and generate color regions, or color value “clusters”, based on the selected color values and the numerical centers. The color conversion system also includes an optimization module operable to refine the numerical center of each color region, determine a boundary for each color region based on the refined center, and remove a portion of the color cluster centers to optimize a number of the color regions for color conversion processing.

Image processing based on a pixel value in image data

An image processing apparatus comprising: a generation unit configured to determine characteristic information associated with image data which expresses an image, to generate an attribute value based on the determination result, and to set the attribute value in an attribute value field included in the image data; and an image processing device configured to apply an image process to a pixel value set in a pixel value field included in the image data, based on the attribute value set in the attribute value field.

Method and apparatus for color print management

In a color printing environment, functions for printing color management are dissociated. An abstraction layer is also provided to facilitate setting and evaluation of all factors relating to color print and prediction.

Image processing apparatus, image processing method, and non-transitory recording medium

An image processing apparatus includes an indexing determiner, an index processor, a line combiner, a drawing processor, and an image forming device. The indexing determiner determines whether color information of pixels forming a line in printing target data are expressible by index colors. The color information is expressed by RGB. The index processor generates an index color image that includes pixels obtained by expressing, using the index colors, the color information of the pixels determined to be expressible by the index colors. The line combiner combines pixels of which the color information is expressed in a same aspect in a plurality of lines to generate an RGB image region and an index color image region. The drawing processor performs a drawing process on each of the RGB image region and the index color image region to generate drawing information. The image forming device processes the drawing information.

Apparatus and method

An apparatus includes a combination unit configured to, in a case where print is print on a second sheet of paper out of two sheets of paper into which mark information for gradation adjustment is divided on a two colors-by-two colors basis, and a type of paper of the second sheet of paper is the same as a type of paper of a first sheet of paper, and in a case where a chart insertion job is not requested or the print is based on the chart insertion job, combine the mark information for gradation adjustment for remaining two colors or four colors with a print image in accordance with a size of the second sheet of paper.

Process for Creating and for Comparing Color Profiles

The present invention relates to a process for comparing a reference colour profile or the color space value of the reference color profile of an analogue reference pattern with a decorative-element-specific color profile or the color space value of the decorative-element-specific color profile of a digital or analogue decorative element. In the course of the process, a reference color profile is created by reading in and storing measurement data of at least one portion of an analogue reference pattern by means of a hyperspectral area measuring device. According to the invention, a decorative-element-specific color profile is created either from the digital data of a digital decorative element or using hyperspectral area measurement of at least one portion of an analogue decorative element.

COLOR CONVERSION APPARATUS AND COLOR CONVERSION METHOD

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM

METHOD FOR MODIFYING PRINTED COLOR AND TONE OF LIBRARY OF SIMILAR DIGITAL IMAGE

PROBLEM TO BE SOLVED: To provide a system and a method for modifying the printed color and tone of a library of similar digital images. SOLUTION: A single image is selected from the library 10 of similar images and is operated through a set of characteristic metamorphoses. Each of the operated images is processed for printing. A setting value for a printer for actual job data is identified and many reproductions of the selected images are printed with the identified setting value for the printer. By visually inspecting a complete array of the images, the optimal metamorphosis is decided and each of the complete array of images is operated through a different metamorphosis. COPYRIGHT: (C)2003,JPO ...

ЭНДОСКОПИЧЕСКАЯ ВИДЕОСИСТЕМА

Группа изобретений относится к медицинской технике, а именно к эндоскопическим видеосистемам. Способ идентификации особенности в данных изображения включает осуществление доступа к данным изображения, снятого с помощью эндоскопического видеоустройства, при этом данные изображения кодируются в первом цветовом пространстве, преобразование данных изображения, к которым осуществляется доступ, из первого цветового пространства во второе цветовое пространство, при этом второе цветовое пространство отличается от первого цветового пространства и является цветовым пространством сегментирования, определение местоположения особенности на изображении при анализе данных изображения во втором цветовом пространстве, сохранение данных сегментации, которые указывают местоположение особенностей на изображении, и отображение, на основе данных сегментации, изображения с указанием определенного местоположения особенностей. Во втором варианте осуществления способа дополнительно определяют местоположение особенности ...

Verfahren zur Durchführung eines Druckprozesses in einer Inkjet-Druckmaschine

Verfahren zur Durchführung eines Druckprozesses in einer Inkjet-Druckmaschine (7) mit einer Farbraumtransformation zwischen einem Zielfarbraum und einem Prozessfarbraum durch einen Rechner (6), wobei für eine Kalibrierung der Inkjet-Druckmaschine (7) eine für den Druckprozess geeignete Testform im Prozessfarbraum mit druckprozessbedingten Beschränkungen im Farbauftrag gedruckt und farbmetrisch im Zielfarbraum vermessen wird, die so erzeugten Messwerte Stützstellen im gemessenen Zielfarbraum entsprechen, zwischen den Stützstellen interpoliert wird und somit weitere Stützstellen definiert werden und mittels der Stützstellen im Zielfarbraum und den aus der Testform bekannten Eingangswerten im Prozessfarbraum, welche den Stützstellen im Zielfarbraum entsprechen, die Farbraumtransformation durchgeführt wird, und welches dadurch gekennzeichnet ist, dass für die druckprozessbedingten Beschränkungen im Farbauftrag, sowie für die Eingangswerte im Prozessfarbraum direkt die physikalische Größe des ...

Verarbeitungseinheit zur Konturenverstärkung, Endoskopprozessor und Computerprogrammprodukt

Beschrieben ist eine Verarbeitungseinheit (30) zur Konturenverstärkung, umfassend einen Ermittlungsblock (31), der ermittelt, ob der Luminanzpegel eines Umgebungspixels (SP), das in einem um ein Zielpixel (FP) liegenden Bereich angeordnet ist, größer als Null ist; und einen Signalverarbeitungsblock (40R, 40G, 40B), der an einem Pixelsignal, das von dem Zielpixel (FP) erzeugt wird, eine Konturenverstärkung durchführt, wenn der Ermittlungsblock ermittelt, dass der Luminanzpegel des Umgebungspixels (SP) größer als Null ist.

Optimizing detection of images in relation to targets based on colorspace transformation techniques

Techniques to improve detection and security of images, including formation and detection of matrix-based images. Some techniques include logic to process image data, generate one or more colorspaces associated with that data, and perform colorspace conversions based on the generated colorspace. The logic may be further configured to generate an image based on the colorspace conversions, including but not limited to a matrix bar code. The logic may be further configured to apply one or both of an ultraviolet layer and an infrared layer to the image, e.g. matrix barcode, generated from the colorspace conversion(s). Other embodiments are described and claimed.

Image processing apparatus, image processing method, and program

Video endoscopic system

C:\Interwoven\NRPortbl\DCC\PLW328485_l.docx-/I 07/2018 Image data representing an image captured by a video endoscopic device is converted from a first color space to a second color space. The image data in the second color space is used to 5 determine the location of features in the image. - 29 - -1000 104c 1108b 108a Camera fltEufacC 104a ------- 102 Enaf. ioperc Device ...

Color changing effects with cross-halftone prints on metal

We propose new methods for creating color varying prints with classical cyan, magenta, yellow inks on a metallic substrate. We use a special crossline halftone with optimized surface coverages of the inks to create color prints on a metallic surface whose colors change when rotating the print in-plane under specular reflection. These prints enable viewing on the same metallic print a first image with a first set of colors and upon in-plane rotation, the same image with parts colored with a different set of colors. They also enable viewing a first color image and upon rotation a second independent color image. Applications comprise counterfeit prevention, art, advertisement exhibitions and amusement parks.

Change degree deriving device, change degree deriving system and known color body

Control apparatus, multidimensional correction method

Image processing apparatus, image processing system, and image processing method

Color verification system and computer-readable recording medium storing program

A color verification system of an aspect of the present invention includes an information processing apparatus that generates a job and an image forming apparatus that forms a color image on a sheet on the basis of the job. The information processing apparatus includes a storage portion that stores: information of the image forming apparatus under management; and target information including a target profile set to the image forming apparatus. Furthermore, when a plurality of different target profiles is set to the image forming apparatus, the information processing apparatus includes a job generation portion that generates the job: including image data containing a plurality of color verification images associated with the plurality of target profiles, respectively; and including an output setting.

System and method for color correction

This invention is directed to a system and method for performing color corrections on color image data. More particularly, this invention is directed to a system and method for performing color corrections on color image data in a primary color system. This invention is particularly useful in performing color corrections on color image data that is to be output on a image processing apparatus.

IMAGE READING DEVICE AND METHOD, READING AREA DISPLAY DEVICE AND METHOD, AND PROGRAM

In a preferred aspect of the present invention, a color distribution of manuscript image data is analyzed. At least one or more areas satisfying an allowable condition determined for a color distribution in advance in the manuscript image data is set as a reading area on the basis of a result of the analysis of the color distribution of the manuscript image data. A setting position of the printed material with respect to a reading unit that performs reading of the printed material on which an image is printed on the basis of the manuscript image data is displayed on the basis of a result of the setting of the reading area. Reading of the printed material set in the reading unit is performed after the setting position is displayed by a display unit.

Image forming apparatus that ensures improved visibility of low lightness part, and color conversion method, and recording medium

An image forming apparatus includes a color conversion unit, a representative-hue-range acquiring unit, and a color correction unit. In a Voronoi diagram based on a grid point of the color conversion table with respect to one hue range of the two representative hue ranges obtained by the representative-hue-range acquiring unit, when a movement pixel corresponds most to a Voronoi region where the pixels inside the one hue range in the specific part corresponds most, the movement pixel being a pixel inside the other hue range of the two representative hue ranges in the specific part with only the hue of the pixel being moved to the one hue range, the color correction unit corrects color of the image inside the other hue range in the specific part such that the movement pixel does not correspond to the Voronoi region.

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

The invention causes a gloss observed in a reproduction to approach a gloss of a target even if a range in which it is possible to change the gloss in the reproduction is small. An input unit inputs color and gloss data including at least a color signal and a gloss signal of the target to reproduce. A mapping unit maps the color and gloss data into a gloss representable range based on information indicating a gloss representable range of the gloss representation device. A signal generation unit generates, based on the color and gloss data after the mapping, an output signal outputted to the gloss representation device. The mapping unit performs a mapping that saves information indicating a local gloss difference in accordance with a spatial distribution of the gloss signal as the mapping of the gloss signal. 1. An image processing apparatus that performs gloss representation processing for representing a gloss of a target , the apparatus comprising:an input unit configured to input image data including at least one of a color signal and a gloss signal that expresses a target that is reproduced;a mapping unit configured to map, based on information indicating a gloss representable range of a gloss representation device, the image data to the gloss representable range; anda generation unit configured to generate, based on image data after the mapping, an output signal outputted to the gloss representation device,wherein the mapping unit performs a mapping that saves information indicating a local gloss difference in accordance with a spatial distribution of the image data as the mapping of the image data.2. The apparatus according to claim 1 , wherein the mapping unit further performs claim 1 , in accordance with a spatial distribution of at least one color signal included in the color signal claim 1 , mapping of a color signal that saves information indicating a local brightness difference claim 1 , andoutputs, as a gloss signal mapping result, a weighted sum of a ...

IMAGE FORMATION APPARATUS

An image formation apparatus includes: a storage which stores a test pattern; and image formation sections which form an image of the test pattern on a medium. The image of the test pattern includes divided images formed by being divided into regions in a main scanning direction and a sub-scanning direction. Each of the divided images is formed by at least one preset image formation section out of the image formation sections. A total width, in each of the main scanning direction and the sub-scanning direction, of the divided images formed by each of the image formation sections is larger than the entirety of a corresponding width of the image of the test pattern. 1. An image formation apparatus comprising:a storage which stores a test pattern; andimage formation sections which form an image of the test pattern on a medium, whereinthe image of the test pattern comprises divided images formed by being divided into regions in a main scanning direction and a sub-scanning direction,each of the divided images is formed by at least one preset image formation section out of the image formation sections, anda width in each of the main scanning direction and the sub-scanning direction of the divided images formed by each of the image formation sections covers the entirety of a corresponding width of the image of the test pattern.2. The image formation apparatus according to claim 1 , wherein the test pattern includes:image data based on which the image of the test pattern is to be formed; andprint setting information based on which the medium is to be set.3. The image formation apparatus according to claim 2 , wherein the print setting information includes a size of the medium claim 2 , a medium loading section on which the medium is to be set claim 2 , and a set orientation of the medium.4. The image formation apparatus according to claim 1 , wherein each of the divided images is formed to incline from a transport direction of the medium.5. The image formation apparatus ...

IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An image reading apparatus includes an image reading section and a detection section. The image reading section includes at least two detection units, and performs a reading operation on an image. The at least two detection units have respective spectral characteristics which are different from each other. The detection section detects a condition of an irregularity on an image carrier by comparing a detection result of the image read by the image reading section with an output characteristic. The output characteristic is stored in advance and is a color component obtained from a value obtained by the image reading section reading a test image having a region in at least one color. 1. An image reading apparatus comprising:an image reading section that includes at least two detection units and that performs a reading operation on an image, the at least two detection units having respective spectral characteristics which are different from each other; anda detection section that detects a condition of an irregularity on an image carrier by comparing a detection result of the image read by the image reading section with an output characteristic, the output characteristic being stored in advance and being a color component obtained from a value obtained by the image reading section reading a test image having a region in at least one color.2. The image reading apparatus according to claim 1 , further comprising:a correcting section that corrects detection results from the at least two detection units on a basis of the result detected by the detection section.3. The image reading apparatus according to claim 1 , further comprising:an abort section that aborts the reading operation on a basis of the result detected by the detection section.4. The image reading apparatus according to claim 1 ,wherein the detection section reads the test image formed by using one color having a predetermined density.5. The image reading apparatus according to claim 1 ,wherein the detection ...

WEIGHTING FUNCTIONS WHICH VARY WITH INTENDED AREA COLOR VALUES

In an example a method includes deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent. Deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value. 1. A method comprising:deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent,wherein deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value.2. A method according to wherein deriving the print agent coverage vector comprises claim 1 , for a second element of the print agent coverage vector claim 1 , applying a second weighting function which varies based on the intended area color value.3. A method according to further comprising determining the intended area color value by summing color values of an input color space.4. A method according to wherein deriving the print agent coverage vector comprises applying an objective function specifying relative weights for the elements of the print agent coverage vector for a given intended area color value.5. A method according to wherein deriving the print agent coverage vector comprises combining two print agent coverage vectors according to the first weighting function.6. A method according to comprising deriving a set of print agent coverage vectors associated with a plurality of different intended area color values.7. A method according to further comprising selecting at least one print agent coverage vector based on an input color value claim 6 , selecting an element of a selected print agent ...

IMAGE PROCESSING APPARATUS FOR PERFORMING REDUCTION PROCESS TO REDUCE AMOUNT OF SPECIFIC COLOR MATERIAL TO BE USED

In an image processing apparatus a controller acquires target image data representing an image including first and second type of objects. The controller specifies, as a specific type color material, one of first and second type of color materials whose remaining amount is smaller than that of the other, and determines a first reduction index value indicating a first degree of reduction in an amount of the specific type color material for printing the first type of object. The controller creates processed data by performing a reduction process on the target image data to reduce an amount of the specific type of color material for printing the first type of object on the basis of the first reduction index value. An amount of the specific type color material for printing the second type object is not reduced on the basis of the first reduction index value. 1. An image processing apparatus comprising a controller configured to perform:acquiring target image data representing a target image including a plurality of types of objects, the plurality of types of objects including a first type of object having a first attribute, and a second type of object having a second attribute different from the first attribute;acquiring remaining amount information regarding a remaining amount of each of a plurality of types of color materials used for printing the target image, the plurality of types of color materials having a first type of color material and a second type of color material different from the first type of color material;specifying the first type of object among the plurality of types of objects;specifying, as a specific type of color material, one of the first type of color material and a second type of color material, remaining amount of the specific type of color material being smaller than that of remaining one of the first type of color material and the second type of color material;determining a first reduction index value, the first reduction index value ...

Image processing apparatus, image processing method, and non-transitory computer-readable storage medium

An image processing apparatus comprises: an obtaining unit configured to obtain a dynamic range of a captured image on captured image data; a determination unit configured to determine a dynamic range of a printed product when viewed obtained by printing the captured image based on the captured image data, based on printing information on viewing of the printed product; and a conversion unit configured to perform conversion processing for luminance of the captured image data to the dynamic range determined by the determination unit from the dynamic range obtained by the obtaining unit.

REMOTE ADJUSTMENT OF PRINT SETTINGS

Systems and methods for providing remote approval of an image for printing are provided. One system includes a processing circuit in communication with an image capturing device that is configured to capture an image of a printed product. The processing circuit is configured to process the captured image into a processed image accurate to within a tolerance in a color space to indicate the visual appearance of one or more colors. The color space is a standardized color space, such as sRGB or CIELAB. The processing circuit is further configured to transmit the processed image to a display located remote from the image capturing device and to receive an input signal from a remote input device to allow a user to approve or reject the displayed processed image for printing on a print device. 1. A method comprising:receiving, from an image capturing device, a captured image of a printed product on a printing press;transmitting the captured image to a display located remote from the image capturing device;receiving input data from a remote input device;determining an adjustment to a setting of at least one of a plurality of ink control devices of the printing press based on the input data; andtransmit a control signal to adjust at least one of a plurality of ink control devices of the printing press based on the determined adjustment.2. The method of claim 1 , wherein the input data represents a modification to the displayed captured image received from the user claim 1 , and wherein determining the adjustment comprises calculating the adjustment to the setting of the at least one ink control device using the modification to the displayed captured image.3. The method of claim 2 , wherein the input data indicates an indirect adjustment to the at least one ink control device claim 2 , and wherein the adjustment is calculated using the indirect adjustment from the remote input device.4. The method of claim 3 , wherein the input data indicates a change to a color of a portion ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

An apparatus comprises a unit configured to generate gradation data corresponding to an achromatic color generated by combining two or more colors among a plurality of colors, for an excess amount of a total gradation value exceeding a predetermined value, the total gradation value being a sum of gradation values of the plurality of colors used for recording a pixel of interest, and generate gradation data corresponding to the plurality of colors, based on the generated gradation data corresponding to the achromatic color; and a unit configured to quantize the generated gradation data, and generate data to control recording of dots corresponding to the pixel of interest. The predetermined value is a gradation value indicating whether or not to record the dots in an overlapping manner, in case that the dots corresponding to the total gradation value are recorded. 2. The image processing apparatus according to claim 1 , wherein the first generating unit generates the gradation data corresponding to the plurality of colors claim 1 , by acquiring a minimum value among the gradation values of the plurality of colors and a value according to the excess amount claim 1 , and by subtracting the minimum value from the gradation values of the plurality of colors.3. The image processing apparatus according to claim 2 , wherein the value according to the excess amount is a half value of the excess amount.4. The image processing apparatus according to claim 1 , wherein the first generating unit generates gradation data in ascending order of density of colors when being superimposed.5. The image processing apparatus according to claim 4 , wherein the first generating unit preferentially generates the gradation data corresponding to the achromatic color.6. The image processing apparatus according to claim 1 , wherein the second generating unit calculates a threshold value to be used for quantizing target gradation data among gradation data generated by the first generating unit ...

IMAGE FORMING SYSTEM, IMAGE READING APPARATUS, AND IMAGE PROCESSING METHOD FOR HIGH-ACCURACY COLORIMETRY

An image forming apparatus that prints an adjustment pattern on a sheet includes a generator and an image former. The adjustment pattern is for correcting a color value obtained by reading a second patch region on the sheet with a second reader based on a color value obtained by reading a first patch region on the sheet with a first reader. The generator generates image data of the adjustment pattern, and the image former performs printing based on the image data. The adjustment pattern includes a first patch printed in the first patch region and a second patch printed in a region other than the first patch region in the second patch region. The second patch includes a common color patch in a same color as a color of the first patch, and a size of the first patch is larger than a size of the second patch. 1. An image forming system comprising:an image forming apparatus including an image former configured to form a patch on a sheet; andan image reading apparatus that is connected to the image forming apparatus, a first reader configured to read a first patch; and', 'a second reader configured to read a second patch,, 'wherein the image reading apparatus includeswherein the second patch includes a patch in a same color as a color of the first patch,wherein a size of the first patch is larger than a size of the second patch, andwherein the image forming system is configured to correct a color value obtained by reading the second patch with the second reader, based on a color value obtained by reading the first patch with the first reader.2. The image forming system according to claim 1 , wherein the first reader and the second reader are disposed on a conveyance path of the sheet on which the image former is configured to form the patch.3. An image processing method comprising:forming a first patch and a second patch on a sheet with an image former of an image forming apparatus, wherein the second patch includes a patch in a same color as a color of the first patch, ...

Data hiding for spot colors on substrates

The present disclosure relates generally to data hiding for retail product packaging and other printed objects such as substrates. One embodiment embeds an information signal in a spot color for printing on various substrates. The spot color is screened, and overprinted with process color tint. The tint is modulated prior to overprinting with optimized signal tweaks. The optimization can include consideration of a detector spectral dependency (e.g., red and/or green illumination). Many other embodiments and combinations are described in the subject patent document.

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM

An image processing apparatus includes: an image determining unit configured to determine a gradation value for each predetermined range in input image data; and a screen generator configured to arrange dot images around a plurality of growth centers in a halftone dot screen to form respective dot blocks if an input area rate indicating a ratio of black to white in dot images at the gradation value is smaller than a value at which an image defect occurs, and form bridges to connect adjacent dot blocks during a smallest gradation number if distances between the adjacent dot blocks decrease to a predetermined value or less along with growth of the dot blocks, to form a void halftone dot image. 1. An image processing apparatus comprising:an image determining unit configured to determine a gradation value for each predetermined range in input image data; anda screen generator configured to arrange dot images around a plurality of growth centers in a halftone dot screen to form respective dot blocks if an input area rate indicating a ratio of black to white in dot images at the gradation value is smaller than a value at which an image defect occurs, and form bridges to connect adjacent dot blocks during a smallest gradation number if distances between the adjacent dot blocks decrease to a predetermined value or less along with growth of the dot blocks, to form a void halftone dot image.2. The image processing apparatus according to claim 1 , wherein a dot block forming unit configured to form the dot blocks such that, if adding a new dot image in contact with a dot block, the new dot image is in contact with a predetermined number or more of dots of the dot block in all directions around the dot image;', 'a void image forming unit configured to form the bridges to connect the adjacent dot blocks during the smallest gradation number, to form the void halftone dot image, if the dot blocks are grown by the dot block forming unit, and the distances between the adjacent dot ...

COLOR MODEL

Certain methods and systems are described to provide color modelling. This color modelling applies to halftone images. In one example, a correction parameter for a color model is determined by minimizing a distance metric between a set of estimated spectral reflectance values and a set of measured spectral reflectance values to generate a multi-dimensional correction parameter. This enables a color model to be used to map at least one Neugebauer Primary area coverage value to at least one spectral reflectance value. 1. A computer-implemented method comprising: each value being representative of a measured spectral reflectance of a halftone portion of a printed output generated by a particular printing device,', 'each halftone portion being printed with one or more printing fluids at a particular area coverage, one or more printing fluids at a particular area coverage being expressed as a Neugebauer Primary area coverage value for printing;, 'obtaining a plurality of measured spectral reflectance values,'} 'the color model mapping at least one Neugebauer Primary area coverage value to at least one spectral reflectance value;', 'deriving parameters for at least one color model,'}computing estimated spectral reflectance values by applying the color model to the Neugebauer Primary area coverage values for printing;minimizing a distance metric between the estimated spectral reflectance values and the measured spectral reflectance values to generate a multi-dimensional correction parameter; andupdating the color model to include the multi-dimensional correction factor.2. The method of claim 1 ,wherein the color model comprises application of Kubelka-Munk, Neugebauer and Yule-Nielsen models, andwherein the multi-dimensional correction factor is applied following application of the Kubelka-Munk, Neugebauer and Yule-Nielsen models.3. The method of claim 1 ,wherein a color for each halftone portion is represented by a Neugebauer Primary area coverage vector,wherein each entry ...

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

In order to implement preferred sharpness recovery processing for an image, an image processing apparatus which generates, based on input image data, halftone image data used for an image forming process of forming an image on a print medium. The apparatus converts the input image data into color material amount data used for the image forming process; performs, on the color material amount data, gamma correction to compensate for non-linearity of an input/output density in the image forming process; performs, on the color material amount data after the gamma correction, recovery processing to compensate for sharpness degradation of an image formed by the image forming process; and performs halftone processing on the color material amount data after the recovery processing to generate halftone image data. 1. An image processing apparatus which generates , based on input image data , halftone image data used for an image forming process of forming an image on a print medium , the apparatus comprising:a conversion unit configured to convert the input image data into color material amount data used for the image forming process;a correction unit configured to perform, on the color material amount data, gamma correction to compensate for non-linearity of an input/output density in the image forming process;a processing unit configured to perform, on the color material amount data after the gamma correction, recovery processing to compensate for sharpness degradation of an image formed by the image forming process; anda halftone processing unit configured to perform halftone processing on the color material amount data after the recovery processing to generate halftone image data.2. The apparatus according to claim 1 , wherein a sharpness recovery filter utilized for the recovery processing is a filter which has a reverse characteristic of a frequency characteristic of the image formed by the image forming process and a restricted upper limit of compensation so clipping ...

COLOR TABLE COMPRESSION

In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table, and a plurality of residue nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table. 1. A print cartridge comprising: quantized coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table; and', 'a plurality of residue nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table., 'a memory device comprising2. The print cartridge of claim 1 , wherein the memory device comprises a residue table that includes the plurality of residue nodes.3. The print cartridge of claim 2 , wherein the memory device comprises a residue bit assignment table useable to decode the residue table.4. The print cartridge of claim 3 , wherein the residue bit assignment table indicates how many bits are assigned to each residue node of the plurality of residue nodes.5. The print cartridge of claim 1 , wherein the quantized coefficients are based on coefficients derived from application of a discrete cosine transform on the difference table.6. The print cartridge of claim 1 , wherein the quantized coefficients comprise a data stream of ...

Color conversion apparatus, non-transitory recording medium storing color conversion program and color conversion method

A color conversion apparatus includes a hardware processor that obtains a scanner profile created on the basis of measured RGB values and corresponding measured colorimetric values of patches in a first color chart, and creates a table including correction amounts of RGB values, each according to the level of flare estimated for a patch and each associated with an RGB-value difference and a patch-size difference, on the basis of RGB values of patches in the first color chart and RGB values of patches in a specific chart. The specific chart is created by using a part of the patches in the first color chart with the RGB value or patch size being changed. The hardware processor further corrects measured RGB values of patches in a second color chart with the table, and convers the corrected RGB values into colorimetric values with the scanner profile.

COLOR TABLE COMPRESSION

In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table. 1. A print cartridge comprising: 'quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size; and', 'a memory device comprisingcorrective information to correct the second set of difference nodes of the reconstructed difference color table.2. The print cartridge of claim 1 , wherein the corrective information includes node location information for the second set of nodes.3. The print cartridge of claim 2 , wherein the memory device includes the selected ...

DISPLAY DEVICE, PRINTING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

A display device includes an obtainer and a display controller. The obtainer obtains information on at least one special color to be printed, the information being information on the at least one special color with respect to at least one basic color. The display controller performs control to display a portion where the at least one special color is to be printed in accordance with a color value corresponding to a degree of transparency obtained from the information on the at least one special color, which is obtained by the obtainer. 1. A display device comprising:an obtainer that obtains information on at least one special color to be printed, the information being information on the at least one special color with respect to at least one basic color; anda display controller that performs control to display a portion where the at least one special color is to be printed in accordance with a color value corresponding to a degree of transparency obtained from the information on the at least one special color, which is obtained by the obtainer.2. The display device according to claim 1 , wherein the obtainer obtains a density of the at least one special color.3. The display device according to claim 1 , wherein the display controller adjusts the degree of transparency for the at least one special color in accordance with information on an arrangement of the at least one special color with respect to the at least one basic color.4. The display device according to claim 3 , wherein the display controller adjusts the degree of transparency for the at least one special color to be lower when the at least one special color is to be printed behind the at least one basic color than when the at least one special color is to be printed in front of the at least one basic color.5. The display device according to claim 3 , wherein the display controller adjusts the degree of transparency for the at least one special color to be higher when the at least one special color is to ...

Image processing apparatus, image processing system, and non-transitory recording medium

An image processing apparatus includes circuitry configured to receive a designation of a to-be-corrected color that is a process color or a special color different from the process color and is to be corrected; identify, on the basis of the designation, a tone correction pattern, and generate rendering data of the tone correction pattern to be used for forming an image on a recording medium; obtain a standard value of the to-be-corrected color; and correct the to-be-corrected color on the basis of a difference between a color measuring result obtained from measuring a color of the image, of the tone correction pattern formed on the recording medium and the standard value.

IMAGE SCANNER

An image scanner is configured to: while changing a reading position by a position changer and sequentially emitting light of each of three colors in a turn-on sequence from a light source to a document, control a line sensor to read reflection light of emitted light, thereby acquiring gradation image data including gradation values of three colors for each pixel in one line; determine whether a top color shift occurs in the gradation image data at a determination position; in response to determining that the top color shift occurs at the determination position, replace gradation image data at the determination position with black image data; determine whether a bottom color shift occurs in the gradation image data at the determination position; and in response to determining that the bottom color shift occurs at the determination position, replace gradation image data at the determination position with white image data. 1. An image scanner comprising:a light source configured to emit light of each of three colors of red, blue, and green;a line sensor configured to read an image, on a document, of one line along a first direction;a position changer configured to change a reading position in a second direction perpendicular to the first direction, the reading position being a position of the image of one line that is read by the line sensor; and while changing the reading position by the position changer and sequentially emitting light of each of the three colors in a turn-on sequence from the light source to the document, control the line sensor to read reflection light of the emitted light, thereby acquiring gradation image data including gradation values of the three colors for each pixel in one line;', 'determine whether a top color shift occurs in the gradation image data at a determination position that is a position of a particular pixel in one line, the top color shift being caused by a change of an image to be read, in the second direction, from a white ...

Mobile image forming apparatus, image compensation method thereof and non-transitory computer readable recording medium

A mobile image forming apparatus and an image compensation method of the mobile image forming apparatus are provided. The mobile image forming apparatus includes a surface measurer configured to measure an area touched by the mobile image forming apparatus among a surface area on which a print image is to be printed, an image processor configured to retrieve at least one of curvature data and moisture data from the measured result, and compensate the print image based on the at least one of the curvature data and moisture data retrieved, and an image former configured to print the compensated print image on the surface.

Information processing apparatus, method for processing information, and computer program

An information processing method includes calculating at least one difference value between a pixel value of a target pixel in an input image obtained by capturing a document image and a pixel value of a corresponding pixel in a shade component image at coordinates identical to those of the target pixel. The shade component image represents shade components of the input image. The shade components depend on an image capture environment. The method further includes correcting the pixel value of the target pixel in the input image based on a correction rate to correct a shade component in the target pixel. The correction rate depends on at least one difference value associated with the target pixel in the input image.

INFORMATION PROCESSING APPARATUS, METHOD FOR PROCESSING INFORMATION, AND COMPUTER PROGRAM

An information processing method includes determining, in a luminance image that represents luminance components of an input image obtained by capturing a document image, a shaded region affected by shade and a specific pixel region including specific pixels less affected by the shade through a color of an object in the document image by using the luminance components of pixels of the luminance image, and generating a shade image that represents shade components of the input image by referring to pixel values of pixels adjacent to the specific pixels and repeating replacement processing of replacing a pixel value of each of the specific pixels with a value of the shaded region adjacent to the specific pixel until the specific pixel region disappears. 1. A method for processing information , the method comprising:determining, in a luminance image that represents luminance components of an input image obtained by capturing a document image, a shaded region affected by shade and a specific pixel region including specific pixels less affected by the shade through a color of an object in the document image by using the luminance components of pixels of the luminance image; andgenerating a shade image that represents shade components of the input image by referring to pixel values of pixels adjacent to the specific pixels and replacing a pixel value of each of the specific pixels with a value of the shaded region adjacent to the specific pixel,wherein in the generating, replacing a pixel value of each of the specific pixels with the value of the adjacent shaded region is repeated until the specific pixel region disappears in or from the luminance image.2. The method according to claim 1 , wherein the specific pixels each have a color component different from a color component of the shade in the luminance image by a predetermined threshold value or more.3. The method according to claim 1 , further comprising:segmenting the input image into a plurality of blocks;obtaining ...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

It is guaranteed that a designated color that is a target of spot color matching is converted correctly into a destination color thereof at the time of output. In a case where drawing data for causing an image output apparatus to perform drawing of an image is generated, whether a designated color in a first color space, which is included in an input image, is converted into a destination color in a second color space, which can be handled by the image output apparatus, is determined at the time of output of the image. Then, in a case where it is determined that the conversion is performed, control is performed such that color adjustment is not performed for at least the designated color of colors included the input image. 1. An information processing apparatus comprising:a first performing unit configured to perform first setting for changing colors of an input image into colors that are based on the colors and second setting for changing a designated color of the input image into another designated color that is not based on the designated color; anda second performing unit configured to perform control such that the change based on the first setting is not performed based on the second setting having been enabled.2. The information processing apparatus according to claim 1 , whereinthe control is control such that the first setting is not performed based on the second setting having been enabled.3. The information processing apparatus according to claim 2 , whereinthe control is control to gray out an object corresponding to the first setting such that the first setting is not selected by a user based on the second setting having been enabled.4. An information processing apparatus that generates drawing data for causing an image output apparatus to draw an image claim 2 , the information processing apparatus comprising:a color adjustment unit configured to adjust a color represented in a first color space, which is included in an input image;a control unit ...

CLOSED LOOP COLOR CALIBRATION WITH MULTIPLE INLINE IMAGERS

Production methods and systems enable the inline production of instant lottery tickets or documents using at least three different digital imagers. By interfacing at least three digital imagers in a common printing line, heretofore unknown printing efficiencies are realized, particularly on smaller volume print runs. These methods and systems enhance the overall appearance of the printed instant lottery tickets or documents, as well as potentially expand the consumer base. 1. A method for producing Scratch-Off Coating (SOC) protected tickets or documents on a common inline web press using (i) multiple digital imagers each maintaining registration with the other , (ii) a closed loop feedback camera system , and (iii) an operator monitor display , the method comprising:(a) printing, with each digital imager, process color physical images comprised of varying amounts of Cyan, Magenta, Yellow, and blacK (CMYK) ink or dye;(b) capturing color digital facsimiles having CMYK data of at least a portion of the printed process color physical images with a closed loop feedback camera system;(c) processing the color digital facsimiles;(d) comparing the color digital facsimiles with initially established color calibration data and/or the process color physical images of at least one of the other digital imagers;(e) digitally adjusting the varying amounts of CMYK data of the color digital facsimile images to theoretically calibrate the printed tickets and documents to substantially match the initially established color calibration data;(f) displaying the digitally adjusted color digital facsimile images on a monitor display, thereby enabling human operator approval of the digitally adjusted color digital images; and(g) saving the digitally adjusted color digital facsimile images to a memory storage associated with the inline web press so that subsequently-printed tickets or documents substantially match the initially established color calibration data.2. The method of claim 1 , ...

ADAPTIVE COLOR TRANSFORMATION TO AID COMPUTER VISION

System and techniques for adaptive color transformation to aid computer vision are described herein. Colors from an image are mapped into a multi-dimensional space to create a distribution of colors in the image. A line can be fit to the distribution. Here, the line includes an angle relative to a coordinate system of the multi-dimensional space. A transformation to colors can then be applied to the image based on the angle of the line. The transformation producing a reduced image where a color complexity of the original image is reduced. 1. A device for adaptive color transformation to aid computer vision , the device comprising:a memory including instructions; andprocessing circuitry that is configured by the instructions to:obtain a color image;map colors of the image into a multi-dimensional space to create a distribution of colors in the image, a dimension of the multi-dimensional space corresponding to a component of a color;fit a line to the distribution, the line including an angle relative to a coordinate system of the multi-dimensional space;apply a transformation to colors in the image based on the angle to produce a reduced image, the transformation reducing a color complexity; andcommunicate the reduced image to a receiver.2. The device of claim 1 , wherein the color image is preprocessed from a first color representation that does not include a luminance component of the color to a second color representation that includes a luminance component.3. The device of claim 2 , wherein the first color representation is red-green-blue.4. The device of claim 2 , wherein the second color representation is one of YUV claim 2 , YIQ claim 2 , YDbDr claim 2 , YCbCr claim 2 , YPbPr claim 2 , ICtCp claim 2 , or xvYCC.5. The device of claim 2 , wherein the first color representation or the second color representation includes a depth component.6. The device of claim 1 , wherein claim 1 , to fit the line to the distribution claim 1 , the processing circuitry is arranged ...

DATA HIDING FOR SPOT COLORS IN PRODUCT PACKAGING

The present disclosure relates generally to data hiding for retail product packaging and other printed objects. One embodiment embeds an information signal in a spot color for product packaging. The spot color is screened, and overprinted with process color tint. The tint is modulated prior to overprinting with optimized signal tweaks. The optimization can include consideration of a detector spectral dependency (e.g., red and/or green illumination). Many other embodiments and combinations are described in the subject patent document. 1. A retail product package comprising: in which the combination has been optimized by:', 'determining a color error between data representing third color data (S3) and a combination of S1 and S2,', 'determining an information modulating error associated with the max and min tweaks; and', 'finalizing the combination of S1 and S2, including minimizing the color error and minimizing the information modulating error; and, 'a first printed area, the first printed area comprising a combination of i) data representing first color data (S1), and ii) data representing second color data (S2), in which encoded information is provided on said retail product package through modulation of the data representing second color data (S2) with max (positive) and min (negative) tweaks;'}a second printed area including a barcode;a third printed area including text information printed thereon.2. The retail product packaging of in which the combination has been optimized by a process which included determining color weights and a global signal strength claim 1 , the color weights to be applied to the data representing second color data (S2) and the global signal strength for regulating the modulation.3. The retail product packaging of in which the combination has been optimized by a process constrained by spectral reflectance between 630 nm to 680 nm.4. The retail product packaging of in which combination has been optimized by a process constrained by ...

SYSTEM AND METHOD FOR ENDOSCOPE CALIBRATION

A system and method for calibrating an endoscope having the camera and the light source close to each other in an enclosed environment. The system includes a colour chart plate, being specularly reflecting, having radially extending colour patches, and a circular central achromatic bright field that can handle the automatic gain control of the camera. The colour chart can be mounted into a container unit having mechanically connected holders to support the endoscope arm. 127-. (canceled)28. A method for calibrating a camera system with an integrated light source , the system comprising a camera with the light source , a container , and a colour chart plate with a colour chart having a circular central bright achromatic field , the method comprising the steps of aligning the camera's field of view with the circular central achromatic bright field of the colour chart and adjusting the size of a beam from the light source until pixels inside the circular central achromatic field are saturated while pixels outside the circular central achromatic field are not saturated , extract colour values from the colour patches and calculate correction values , further comprising managing automatic gain control so that the signal from the colour patches outside the circular central achromatic bright field is not saturated.29. The method according to comprising reading markings on the colour chart plate to define its orientation.30. The method according to wherein the colour values of each patch are extracted and compared to reference values claim 28 , and the differences between the extracted values and the reference values are implemented in a correction function.31. The method according to comprising calculating at least one user preference correction relative the colour chart claim 28 , using a second set of patches or an image.32. The method according to comprising storing information related to the colour chart in a marking or code for identification claim 28 , for example a ...

INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD

An information processing apparatus includes circuitry configured to: receive designation of a particular color; obtain device values of a plurality of colors that are present within a predetermined distance or less from the designated particular color in a color space; and determine a patch configuration based on the device values. In determination the patch configuration, the circuitry is configured to determine a gradation change width of each color material based on a degree of change of a device value of each color material. 1. An information processing apparatus comprising circuitry configured to:receive designation of a particular color;obtain device values of a plurality of colors that are present within a predetermined distance or less from the designated particular color in a color space; anddetermine a patch configuration based on the device values,wherein in determination the patch configuration, the circuitry is configured to determine a gradation change width of each color material based on a degree of change of a device value of each color material.2. The information processing apparatus of claim 1 , whereinin determining the patch configuration, the circuitry is configured to set the gradation change width of a color material whose degree of change of the device value is smaller than a threshold value to zero.3. The information processing apparatus of claim 1 , whereinin determining the patch configuration, the circuitry is configured to set a value of the gradation change width to a greater value in descending order of the degree of change of the device value for each color material.4. The information processing apparatus of claim 3 , whereinthe larger the gradation change width set by the circuitry is, the larger the number of gradation divisions is set.5. The information processing apparatus of claim 1 ,in determining the patch configuration, the larger a color difference between the designated particular color and a target color is, the larger ...

Calibration target

A calibration target is disclosed. The calibration target is created such that a color patch is sensitive to drop weight changes based on drop weight variations that show greater changes in color for a given change in drop weight.

IMAGE PROCESSING DEVICE, METHOD FOR OPERATING THE SAME, AND ENDOSCOPE SYSTEM

First RGB image signals are subjected to an input process. First color information is obtained from the first RGB image signals. Second color information is obtained by a selective expansion processing in which color ranges except a first color range are moved in a feature space formed by the first color information, the first color information that represents each object in a body cavity being distributed in the each color range. The second color information is converted to second RGB signals. A red display signal, a green display signal and a blue display signal are obtained by applying a pseudo-color display process to the second RGB signals. 1. An image processing device comprising:an input processor configured to perform an input process of a first red signal, a first green signal and a first blue signal;a color information obtaining processor configured to obtain first color information from the first red signal, the first green signal and the first blue signal;an expansion processor configured to obtain second color information by a selective expansion processing in which color ranges except a first color range are moved in a feature space formed by the first color information, the first color information that represents each object in a body cavity being distributed in the each color range;an RGB signal converter configured to convert the second color information to a second red signal, a second green signal and a second blue signal; anda pseudo-color display processor configured to obtain a red display signal, a green display signal and a blue display signal by applying a pseudo-color display process to the second red signal, the second green signal and the second blue signal.2. The image processing device according to claim 1 , wherein the pseudo-color display process is a first color tone converting process to convert the second blue signal to the blue display signal and the green display signal and convert the second green signal to the red display ...

Print control apparatus and print control method

Provided is a print control apparatus that dispenses ink of a plurality of colors through corresponding nozzles according to print data, to print an image on a printing medium. The print control apparatus includes a print data generation unit that generates, according to the image, the print data defining on/off setting of dots in each of pixels with respect to the ink of each of the plurality of colors. The print data generation unit generates the print data for the ink of a specific color having highest brightness among the plurality of colors through first gray scale conversion using a dither mask, and generates the print data for the ink of the plurality of colors except for the color subjected to the first gray scale conversion, through second gray scale conversion using a line screen.

IMAGE PROCESSING APPARATUS

An image processing apparatus comprising: a generation unit configured to determine characteristic information associated with image data which expresses an image, to generate an attribute value based on the determination result, and to set the attribute value in an attribute value field included in the image data; and an image processing device configured to apply an image process to a pixel value set in a pixel value field included in the image data, based on the attribute value set in the attribute value field. 17.-. (canceled)8. An apparatus comprising:a dividing unit configured to divide at least part of an image into a plurality of processing blocks, based on a pixel position in the image obtained by reading an original using a scanning device;a determination unit configured to determine an attribute value which specifies processing content of one or more pixels in each processing block divided by the dividing unit, based on the pixel position in the image; andan image processing unit configured to execute an image process to a pixel value in image data which represents the image, based on the attribute value determined by the determination unit.9. The apparatus according to claim 8 , wherein the image process includes one of a tone conversion process claim 8 , a color conversion process claim 8 , and a smoothing process.10. The apparatus according to claim 8 , wherein the image processing unit selects a table or a coefficient used in the image process based on the attribute value.11. The apparatus according to claim 8 , whereinthe dividing unit divides the at least part of the image into the plurality of processing blocks, based on the pixel position in the image and characteristic information associated with the image process on the image, andthe determination unit determines the attribute value based on the pixel position in the image and the characteristic information associated with the image process.12. The apparatus according to claim 8 , wherein the ...

IMAGE CAPTURING UNIT, COLOR MEASURING DEVICE, IMAGE FORMING APPARATUS, COLOR MEASURING SYSTEM AND COLOR MEASUREMENT METHOD

An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit. 1. (canceled)2. An image capturing apparatus comprising:a sensor that image-captures a subject via an opening;a lens disposed in the sensor; anda reference chart that is captured with the subject by the sensor,wherein the reference chart is arranged on a side different from the opening with respect to a center of the sensor when viewed from an optical axis direction of the lens.3. The image capturing apparatus according to claim 2 , wherein the reference chart includes a plurality of chromatic patches.4. The image capturing apparatus according to claim 2 , further comprising a light source that illuminates the subject and the reference chart.5. The image capturing apparatus according to claim 4 , wherein the light source is disposed such that its position when viewed from the optical axis direction of the lens is between the reference chart and the opening.6. The image capturing apparatus according to claim 2 , further comprising a housing having the opening claim 2 , whereinthe reference chart is detachably held with respect to the housing.7. The image capturing apparatus according to claim 2 , wherein the reference chart includes an achromatic scale pattern.8. The image capturing apparatus according to claim 2 , wherein a difference between a light path length from the sensor to the subject and a light path length from the sensor to the reference chart falls within a range of a depth of field of the sensor.9. The image capturing apparatus according to claim 2 , whereinthe subject is an image output by an image forming apparatus on a recording medium; andthe reference chart includes a dot diameter measurement pattern for measuring a dot diameter in the image.10. The image capturing apparatus according to claim 4 , wherein the light source ...

IMAGE PROCESSING APPARATUS

An image processing apparatus includes a data acquiring circuitry and an image generating circuitry. The data acquiring circuitry acquires image formation data that includes an image of a process color as a process color image and an image of a spot color as a spot color image. The image generating circuitry detects, from the image formation data acquired by the data acquiring circuitry, an overlapped region in which a region of the process color image and a region of the spot color image are overlapped with each other, and generates a first process color image from an image of the overlapped region. 1. An image processing apparatus , comprising:a data acquiring circuitry that acquires image formation data, the image formation data including an image of a process color as a process color image and an image of a spot color as a spot color image; andan image generating circuitry that detects, from the image formation data acquired by the data acquiring circuitry, an overlapped region in which a region of the process color image and a region of the spot color image are overlapped with each other, and generates a first process color image from an image of the overlapped region.2. The image processing apparatus according to claim 1 , wherein the image generating circuitry generates a second process color image in which the overlapped region is removed from the process color image.3. The image processing apparatus according to claim 2 , wherein the first process color image and the second process color image are made distinguishable from each other.4. The image processing apparatus according to claim 1 , wherein the image generating circuitry generates the first process color image when the data acquiring circuitry acquires an instruction on confirmation of overlapping of the spot color.5. The image processing apparatus according to claim 1 , wherein the image generating circuitry generates the first process color image when the data acquiring circuitry acquires an ...

IMAGE FORMING APPARATUS AND OPERATION METHOD OF IMAGE FORMING APPARATUS

An image forming apparatus includes a lens, first and second light sensors, a change amount detector, and a controller. The lens is in one of laser scanning systems. The first light sensor is in the one of the laser scanning systems at a position such that the scanning beam is incident on a detection surface thereof. The second light sensor is adjacent to the first light sensor and angled with respect to the first light sensor. The second light sensor is arranged such that the scanning beam is also incident on a detection surface thereof. The change amount detector is configured to detect a time interval of scanning of the first and second light sensors by the scanning beam. The controller is configured to perform an operation to calibrate the laser scanning systems when the time interval is equal to or greater than a first threshold value. 1. An image forming apparatus comprising:a lens arranged in one laser scanning system among a plurality of laser scanning systems and configured to correct a position shift of a scanning beam in a sub-scanning direction;a first light sensor arranged in the one laser scanning system at a position such that the scanning beam corrected by the lens is incident on a detection surface of the first light sensor;a second light sensor adjacent to the first light sensor and angled with respect to the first light sensor, the second light sensor being arranged such that the scanning beam corrected by the lens is also incident on a detection surface of the second light sensor;a change amount detector configured to detect a time interval of scanning of the first light sensor by the scanning beam and scanning of the second light sensor by the scanning beam; anda controller configured to perform an operation to calibrate the plurality of laser scanning systems when the time interval detected by the change amount detector is equal to or greater than a first threshold value.2. The image forming apparatus according to claim 1 , whereineach of the ...

COLOR CALIBRATION

A method of calibrating an area coverage representation of a color. A first area coverage of a Neugebauer primary in an area coverage representation of a color is determined based on a plurality of reference area coverage parameters for the Neugebauer primary, wherein each reference area coverage parameter in the plurality of reference area coverage parameters corresponds to a respective colorant deposition subsystem in a plurality of colorant deposition subsystems. A second area coverage of the Neugebauer primary is determined based on the plurality of reference area coverage parameters and a plurality of calibration parameters for the Neugebauer primary, wherein each calibration parameter in the plurality of calibration parameters corresponds to a respective colorant deposition subsystem in the plurality of colorant deposition subsystems. A plurality of calibrated area coverage parameters are determined for the Neugebauer primary in the area coverage representation of the color based on the plurality of reference area coverage parameters, the plurality of calibration parameters and a difference in area coverage between the first area coverage and the second area coverage. 1. A method of calibrating an area coverage representation of a color , the method comprising:determining a first area coverage of a Neugebauer primary in an area coverage representation of a color based on a plurality of reference area coverage parameters for the Neugebauer primary, wherein each reference area coverage parameter in the plurality of reference area coverage parameters corresponds to a respective colorant deposition subsystem in a plurality of colorant deposition subsystems;determining a second area coverage of the Neugebauer primary based on the plurality of reference area coverage parameters and a plurality of calibration parameters for the Neugebauer primary, wherein each calibration parameter in the plurality of calibration parameters corresponds to a respective colorant ...

Image Processing Apparatus Controlling Printing According to Unidirectional Printing Method or Bidirectional Printing Method

In an image processing apparatus, a processor sets a target printing method for printing a target image to one of a bidirectional printing method and a unidirectional printing method. In a case where the bidirectional printing method is set as the target printing method: the processor executes both a first generation process and a second generation process. The first generation process generates first partial print data by converting a set of partial image data using a first color conversion profile. The second generation process generates second partial print data by converting another set of partial image data using a second color conversion profile. In a case where the unidirectional printing method is set as the target printing method, the processor executes a third generation process generating third partial print data by converting a set of partial image data using a third color conversion profile. 1. An image processing apparatus comprising: a print head moving in a main scanning direction including a first direction and a second direction opposite the first direction, the print head including a first nozzle configured to eject first type ink, and a second nozzle configured to eject second type ink, the second nozzle being positioned apart from the first nozzle in the main scanning direction;', 'a main scanning unit configured to perform a main scan, the main scan including a first main scan to move the print head in the first direction as a printing direction, and a second main scan to move the print head in the second direction as the printing direction; and', 'a sub scanning unit configured to perform a sub scan to move a recording sheet relative to the print head in a sub scanning direction crossing the main scanning direction, the print execution unit performing printing a target image on the recording sheet by alternately executing a partial print and the sub scan a plurality of times, the target image being based on target image data having a plurality ...

IMAGE PRINTING APPARATUS AND IMAGE PRINTING METHOD

An image printing apparatus can print an image in which graininess is suppressed while using a color material of light blue. To achieve this, the color material of light blue satisfies the following condition. 2. The image printing apparatus according to claim 1 , wherein the color material of light blue satisfies:{'sub': C', 'M, 'claim-text': {'br': None, 'i': h', 'ΔL,'}3. The image printing apparatus according to claim 1 , comprising:a unit configured to generate a multi-valued density signal corresponding to each of the plurality of color materials;a binarization unit configured to generate a binary signal for each of the plurality of color materials by quantizing each of the multi-valued density signals, the binary signal defining printing or non-printing of a dot on the print medium; anda unit configured to print on the print medium a dot corresponding to each of the plurality of color materials according to the binary signal.4. The image printing apparatus according to claim 3 , wherein claim 3 , in a case where the multi-valued density signal corresponding to the color material of light blue represents a density between a highlight and a halftone claim 3 , the binarization unit defines printing or non-printing of a dot such that dots of the color material of light blue do not overlap each other on the print medium.5. The image printing apparatus according to claim 1 , wherein the plurality of color materials include not only the color materials of cyan claim 1 , magenta claim 1 , and light blue claim 1 , but also color materials of yellow and black.6. The image printing apparatus according to claim 1 , wherein the plurality of color materials are a dye ink or a pigment ink. Field of the InventionThe present invention relates to an image printing ...

CREATING A COLOR GAMUT LOOK-UP-TABLE

A color look-up-table (LUT) is created for use by an imaging system which uses a resource to display an image and/or provides an attribute of the image. A method of creating the LUT, comprises selecting a threshold value of resource usage and/or metric of the attribute. A predetermined color look-up-table representing a mapping from color values of a first color gamut to color values displayable by the imaging system is accessed. The predetermined color look-up-table has nodes defining colors to be displayed for the said color values. Resource usage and/or attribute values associated with the said nodes are compared with the threshold value thereby determining the set of nodes of the predetermined gamut having a resource usage and/or attribute values less than the threshold value. A new look-up-table is created which maps the said predetermined color gamut look-up-table to the said set of nodes 1. A non-transitory computer-readable data storage medium storing computer-executable code that a computing device executes to:from an original color look-up table for a printing system that has a plurality of nodes mapping color values of a source color gamut to color values of a target color gamut, remove each node having a colorant usage greater than a threshold; andgenerate a replacement node for each removed node within the original color look-up table to generate a replacement color look-up table mapping the color values of the source color gamut to the color values of the target color gamut, the replacement color look-up table having the generated replacement nodes and the nodes of the original color look-up table that the colorant usage of which is not greater than the threshold.2. The non-transitory computer-readable data storage medium of claim 1 , wherein each node of the original color look-up table has a plurality of halftoned patches that map a color value of the source color gamut to a color value of the target color gamut claim 1 , each halftoned patch having ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a conversion unit, a correction unit, an image forming unit, a measurement unit, first, second, and third generation units, a reading unit, an input unit, and a determination unit. Image data of a color components indicating one pixel based on a multidimensional table is converted and then corrected based on one-dimensional tables corresponding to the color components. An image is formed on a sheet based on the corrected image data. A measuring image formed on the sheet is measured. The multidimensional table can be generated based on a multi-color first measuring image. The one-dimensional table can be generated based on a second measuring image. A pattern image formed on the sheet is read. The one-dimensional table can be generated based on a pattern image for each of the color components on the sheet. Input user instructions indicated how the one-dimensional table is generated. 1. An image forming apparatus comprising:a conversion unit configured to convert image data of a plurality of color components indicating one pixel based on a multidimensional table;a correction unit configured to correct the converted image data based on one-dimensional tables, each one-dimensional table respectively corresponding to the plurality of color components;an image forming unit configured to form an image on a sheet based on the corrected image data;a measurement unit configured to measure a measuring image formed on the sheet;a first generation unit configured to control the image forming unit to form a first measuring image on the sheet, control the measurement unit to measure the first measuring image, and generate the multidimensional table based on a result of the measurement of the first measuring image, wherein the first measuring image is a multi-color image;a second generation unit configured to control the image forming unit to form a second measuring image for each of the plurality of color components on the sheet, control the ...

IMAGE PROCESSING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND STORAGE MEDIUM

There are provided an image processing apparatus and a control method for controlling the image processing apparatus. The control method includes extracting a high-luminance region including a high-luminance pixel having a higher luminance than a predetermined luminance included in received image data, expanding the high-luminance region by setting pixel values of pixels configuring a surrounding region of the high-luminance region determined based on an area of the high-luminance region to the same pixel value as the high-luminance pixel, and outputting image data having the expanded high-luminance region. 1. An image processing apparatus comprising:an extraction unit configured to extract a high-luminance region including a high-luminance pixel having a higher luminance than a predetermined luminance included in received image data;an expansion unit configured to expand the high-luminance region by setting pixel values of pixels configuring a surrounding region of the high-luminance region determined based on an area of the high-luminance region to the same pixel value as the high-luminance pixel; andan output unit configured to output image data having the expanded high-luminance region.2. The image processing apparatus according to claim 1 , wherein the extraction unit divides the image data into a plurality of regions claim 1 , detects a presence or an absence of glossiness for each region to extract a glossy region claim 1 , and extracts a high-luminance region including the high-luminance pixel included in the glossy region.3. The image processing apparatus according to claim 1 , wherein claim 1 , in a case where a largest value claim 1 , a second largest value claim 1 , and a smallest value of RGB values of a pixel in the image data are equal to or larger than respectively different predetermined threshold values claim 1 , the extraction unit extracts the pixel as the high-luminance pixel.4. The image processing apparatus according to claim 2 , wherein the ...

INK AMOUNT UPPER LIMIT SETTING APPARATUS, INK AMOUNT UPPER LIMIT SETTING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM FOR STORING PROGRAM OF INK AMOUNT UPPER LIMIT SETTING METHOD

An ink amount upper limit setting apparatus includes a target color designating section that accepts the designation of at least one target color for which an ink amount upper limit is to be set. A patch controller causes an output device to form patches in accordance with output values. A colorimetric value acquiring section acquires colorimetric values of the formed patches. A color reproduction determination output section outputs color reproduction determination information that indicates whether the target color is contained in a color reproduction region for each of ink amount upper limit candidates, on the basis of a coordinate value of the target color and the colorimetric values. 1. An ink amount upper limit setting apparatus that sets an ink amount upper limit for a plurality of inks to be used by an output device , the ink amount upper limit being an upper limit of the amount per unit area of the inks that the output device is permitted to discharge , the ink amount upper limit setting apparatus comprising:a target color designating section that accepts designation of at least one target color for which the ink amount upper limit is to be set;a correspondence relationship defining section that defines a correspondence relationship between coordinate values in a predetermined color space and output values, on the basis of ink amount upper limit candidates, the output values indicating the used amounts of the respective inks, the ink amount upper limit candidates being candidates for the ink amount upper limit;a patch controller that converts surface color coordinate values into the output values on the basis of the correspondence relationship and causes the output device to form patches in accordance with the output values, the surface color coordinate values indicating colors of surfaces of a color reproduction region, the color reproduction region being a range of colors in the predetermined color space, the colors to be reproduced by the output device;a ...

COLOR ADJUSTMENT DETERMINATION METHOD AND INFORMATION PROCESSING APPARATUS

A color adjustment determination method is provided that includes forming a color adjustment image on a recording medium by moving a plurality of heads including a plurality of nozzles relative to the recording medium in a relative moving direction and ejecting liquid from the plurality of heads that are arranged in an orthogonal direction orthogonal to the relative moving direction, acquiring colorimetric values of a plurality of portions of the color adjustment image formed by the plurality of heads that are arranged at different positions in the orthogonal direction, calculating a color difference between at least two portions of the plurality of portions of the color adjustment image based on the colorimetric values of the plurality of portions, and determining whether at least one of the plurality of heads that have ejected the liquid requires adjustment based on the calculated color difference. 1. A color adjustment determination method comprising:forming a color adjustment image on a recording medium by moving a plurality of heads including a plurality of nozzles relative to the recording medium in a relative moving direction and ejecting liquid from the plurality of heads that are arranged in an orthogonal direction orthogonal to the relative moving direction;acquiring colorimetric values of a plurality of portions of the color adjustment image formed by the plurality of heads that are arranged at different positions in the orthogonal direction;calculating a color difference between at least two portions of the plurality of portions of the color adjustment image based on the colorimetric values of the plurality of portions; anddetermining whether at least one of the plurality of heads that have ejected the liquid requires adjustment based on the calculated color difference.2. The color adjustment determination method according to claim 1 , whereinan acceptable color difference to be compared with the calculated color difference is stored in advance; andin ...

Color resources

Example color resources are generated. A first luminosity amount of a greyscale color in a greyscale color space is determined. The greyscale color corresponds with a transformation of a source color in a first color space converted to the greyscale color. The source color corresponding with a depletion color in a second color space, and the depletion color has a second luminosity amount. A target color in a color resource is generated via adjusting a black channel amount in the depletion color to match the second luminosity amount with the first luminosity amount. The target color to correspond with the source color in the color resource.

Color Tables

A color table is modulated. The color table includes a plurality of nodes, and each node corresponds with a color input in the first color space and provides a print output in a second color space. The set of the plurality of nodes are arranged in a vector of a first color perception parameter. The vector can be arranged according to an order of increasing second color perception parameter in the first color space to an end node of the set of the plurality of nodes. A node in the set of the plurality of nodes that provides a peak amount of the second color perception parameter on the medium is determined. The print output for the end node is replaced with a print output corresponding with the node that provides the peak amount of the second color perception parameter on the medium. 1. A method , comprising:receiving a color table having a plurality of nodes, each node corresponding with a color input in a first color space and providing a print output in a second color space to a medium, a set of the plurality of nodes arranged in a vector of first color perception parameter according to an order of an increasing second color perception parameter in the first color space to an end node of the set of the plurality of nodes;determining a node of the set of the plurality of nodes providing a peak amount of the second color perception parameter on the medium; andreplacing a print output corresponding with the end node with a print output corresponding with the node of the set of the plurality of nodes providing the peak amount of the second color perception parameter on the medium.2. The method of wherein the first color space is a red-green-blue color space.3. The method of wherein the second color space is cyan-magenta-yellow.4. The method of wherein the first color perception parameter is hue and the second color perception parameter is chroma.5. The method of wherein the color vector corresponds with a primary color in the second color space.6. The method of ...

DEVICE AND METHOD FOR CONTROLLING COLOR GAMUT, AND DISPLAY DEVICE INCLUDING THE DEVICE

A device for controlling a color gamut includes: a color mapping module which converts a source image signal, based on a first color gamut look-up table; and a color gamut shift module which sets a second color gamut look-up table, based on a grayscale value determined corresponding to an external factor or user setting. When the color gamut shift module is enabled, the color mapping module converts the source image signal, based on the second color gamut look-up table. 1. A device for controlling a color gamut , the device comprising:a color mapping module which converts a source image signal, based on a first color gamut look-up table; anda color gamut shift module which sets a second color gamut look-up table, based on a grayscale value determined corresponding to an external factor or a user setting,wherein, when the color gamut shift module is enabled, the color mapping module converts the source image signal, based on the second color gamut look-up table.2. The device of claim 1 , whereinthe first color gamut look-up table defines an output color gamut having a shape obtained by moving grid points of a source color gamut of the source image signal with a same vector, andthe second color gamut look-up table defines an output color gamut having a shape obtained by moving a white point of the source color gamut to an interpolation point determined according to the grayscale value.3. The device of claim 1 , wherein the color gamut shift module organizes the second gamut look-up table by moving a white point of the first color gamut look-up table to an interpolation point determined according to the grayscale value.4. The device of claim 3 , wherein the color gamut shift module includes:a first processor which outputs, as first output values, values obtained by multiplying parameters of the first color gamut look-up table and corresponding parameters of a reference look-up table determined corresponding to the interpolation point;a second processor which outputs, ...

Linearizing print outputs for a printing system

An example method of linearizing print outputs for a printing system is described. The method involves retrieving a look-up table comprising a plurality of nodes that map input space values to Neugebauer Primary Area Coverage vectors. The printing system is used to print a set of ramps, each ramp comprising a plurality of test areas. The test areas for each ramp are defined by varying vector element values corresponding to input space values that vary in a dimension of the input space. A property of each of the printed test areas is measured and a linearization function is determined based on those measured properties. The linearization function is then applied to the input space values for the plurality of nodes in the look-up table.

COMPUTER PROGRAMS AND METHODS FOR GENERATING 1-BIT IMAGE DATA FROM MULTIPLE-BIT IMAGE DATA

Methods of printing a colour image having more than one colour comprise receiving multiple-bit image data comprising multiple-bit pixel values, deriving 1-bit image data comprising first and second sets of 1-bit image data, and printing from the 1-bit image data the colour image. Methods of generating 1-bit image data for a colour image having more than one colour comprise receiving multiple-bit image data comprising multiple-bit pixel values, and electronically deriving a first set and a second set of 1-bit image data. 1. A method of printing a colour image having more than one colour and derived from multiple-bit image data , the method comprising the steps of:(a) receiving multiple-bit image data comprising multiple-bit pixel values;(b) deriving from said multiple-bit pixel values 1-bit image data comprising a first set and a second set of 1-bit image data comprising “on” and “off” pixel values, each set corresponding to a respective component colour of the colour image; and(c) printing from the 1-bit image data the colour image comprising corresponding first and second sets of dots, the dots of each set being of a respective one of the component colours, each of all of the dots of one of the colours of dots being constrained to be within a respective site selected from a first set of predetermined possible sites, and each of all of the dots of the other colour of dots being constrained to be within a respective site selected from a second set of predetermined possible sites, wherein the possible sites of the first and second sets of possible sites overlap so that individual dots of one colour of dots can overlap dots of the other colour of dots, and wherein the possible sites of one set are of different dimensions from the sites of the other set so that individual dots of one colour cannot fully cover individual dots of the other colour, wherein the possible sites have the same shape and size, the possible sites having different dimensions by virtue of the sites ...

Generating Color Similarity Measures

A system including a memory to store instructions and initial color representations and a processor to execute the instructions in the memory to reference a database having a set of lexical color classifiers, transform each of at least a pair of initial color representations to color values associated with the set of lexical color classifiers, and generate a relative similarity measure related to the at least a pair of initial color representations based on the color values associated with the set of lexical color classifiers. 1. A system comprising:a memory to store instructions and initial color representations and reference a database having a set of lexical color classifiers;', 'transform each of at least a pair of initial color representations to color values associated with the set of lexical color classifiers; and', 'generate a color similarity measure related to the at least a pair of initial color representations based on the color values associated with the set of lexical color classifiers., 'a the processor to execute the instructions in the memory to2. The system of claim 1 , comprising the processor to execute the instructions in the memory to:select the database from larger database based on the initial color representations.3. The system of claim 1 , wherein each of the initial color representations has an initial color attribute value that is transformed into lexical color attribute values for each of the lexical color classifiers.4. The system of claim 3 , wherein the initial color attribute values have n number of color dimensions and the set of lexical color classifiers have m number of color dimensions claim 3 , wherein n is less than m.5. A method of measuring color similarity comprising:receiving an initial color representation for each of at least a pair of image elements;selecting a set of lexical color classifiers;transforming each of the initial color representations to the set of lexical color classifiers;comparing the initial color ...

COLOR MAPPING

A method for color mapping is disclosed based on obtaining a measurement of one or more characteristics of an imaging system. A set of color mappings are provided and the color mapping is selected based on the measurement. Each of the color mappings enables a mapping from a first color space to Neugebauer Primary area coverage vector space. A method for generating a color mapping is disclosed. 1. A method for generating a color mapping comprising:selecting a resource within an imaging system;modelling a limitation for the resource;determining a color mapping that incorporates the limitation,wherein the color mapping enables a mapping of color values from a first color space to one or more Neugebauer Primary area coverage values.2. The method of claim 1 , wherein each color mapping comprises a look-up-table.3. The method of claim 1 , wherein the imaging system is a color halftone printing system.4. The method of claim 1 , wherein:the resource comprises at least one of: one or more printer pens, one or more printer dies and one or more printer nozzles, andthe limitation comprises one or more of a limitation on printing fluid usage and print nozzle usage.5. The method of claim 1 , wherein the first color space comprises a red claim 1 , green claim 1 , blue (RGB) color space.6. A method for color mapping comprising:obtaining a measurement of one or more characteristics of an imaging system;selecting one or more color mappings based on the measurement,wherein each of the one or more color mappings enables a mapping of color values from a first color space to one or more Neugebauer Primary area coverage values.7. The method of claim 6 , wherein each color mapping comprises a look-up table.8. The method of claim 6 , wherein the measurement indicates a limitation on a resource for the imaging system.9. The method of claim 8 , wherein the resource comprises a printer pen and the limitation comprises one or more of a limitation on printing fluid usage and print nozzle usage. ...

COLOR MAPPING

A method for color mapping is disclosed. A color mapping is generated based on an imaging model and a color model for an imaging device. The imaging model allows a set of perturbations to be modelled. A set of metamers is determined for one or more colors. For each metamer, at least the imaging model is used to estimate a color output with at least one modelled perturbation. The color outputs are used to select a Metamer from the set to be used for the color mapping. 1. A method comprising:accessing an imaging model for modelling perturbations of an imaging device;obtaining parameters for at least one color model, the color model indicating a color gamut for the imaging device in a first color space; and computing a set of metamers matching the sampled color, each metamer representing a color value in the second color space;', 'for each metamer in the set of metamers, applying at least the imaging model with one or more perturbations to estimate a color error associated with the one or more perturbations; and', 'selecting a metamer for the sampled color based on the set of estimated color errors, wherein the metamer is used, in the second color space, as a color output for the sampled color in the color mapping., 'determining a color mapping to a second color space for at least one sampled color in the color gamut by2. The method of wherein the imaging system is a color halftoning system and each metamer comprises a Neugebauer Primary area coverage (NPac) vector.3. The method of claim 1 , wherein in the color model comprises application of one or more of the Kubelka-Munk claim 1 , Neugebauer and Yule-Nielsen models.4. The method of claim 1 , wherein the at least one sampled color comprises a color value in a color space based on one of a Red claim 1 , Green claim 1 , Blue (RGB) color space claim 1 , a Cyan claim 1 , Magenta claim 1 , Yellow claim 1 , Black (CMYK) color space claim 1 , an International Commission on Illumination (CIE) Lab color space and a CIE XYZ ...

Mechanism to Perform Color Management Mapping

A printing system is disclosed. The printing system includes a color management unit having a common color engine (CCE) to map input colors matching one of more criteria into output colors having a single color component to generate Preserve-X colors and a color cache to store the Preserve-X colors. The Preserve-X colors include the corresponding pairs of input colors and output colors 1. A printing system comprising: a common color engine (CCE) to map input colors matching one or more criteria into output colors having a single non-zero color component to generate Preserve-X colors, wherein the Preserve-X colors comprise pairs of corresponding input colors and output colors that are mapped to each other; and', 'a color cache to store the Preserve-X colors., 'a color management unit, including2. The printing system of claim 1 , wherein the CCE pre-computes the Preserve-X colors and inserts the Preserve-X colors into the color cache.3. The printing system of claim 2 , wherein the CCE determines whether a Preserve-X mode is set and determines a number of Preserve-X pairs that are to be added to the color cache upon a determination that the Preserve-X mode is set.4. The printing system of claim 2 , wherein the CCE inserts override color substitutions to override Preserve-X colors.5. The printing system of claim 2 , further comprising a lookup table (LUT) to generate output colors corresponding to input colors received at the color management unit.6. The printing system of claim 2 , wherein the CCE retrieves an output color from the color cache upon a determination that the input color has been previously added to the cache.7. The printing system of claim 6 , wherein the input color is a Preserve-X input color.8. The printing system of claim 5 , wherein the LUT performs a multi-dimensional interpolation to generate an output color upon a determination that the input color is not included in the color cache.9. The printing system of claim 8 , wherein the output color ...

System and Method For Color Matching

A system for analyzing and processing user input and providing a result based on a predetermined set of color identifiers, the system comprising a first user input, wherein the first user input comprises of one or more digital images, a second user input, wherein the second user input comprises of responses to queries, a white balancing method for removing color casts from the first user input to create a final corrected image of the first user input, a first database for storing a predetermined set of color identifiers, a second database for storing product profiles, and a processor for analyzing the final corrected image of the first user input and the second user input collectively, comparing the final corrected image of the first user input and the second user input collectively to the predetermined set of color identifiers, and providing a color output.

Methods and systems for dynamic sharing of icc profiles

Example embodiments relate to dynamic sharing of ICC profiles. A computing device may receive data representing a paper type, a customer precision requirement, and supporting parameters and perform a search of a paper catalog using the data for an existing ICC profile that satisfies the customer precision requirement. Search parameters used during the search of the paper catalog may depend on a level of the customer precision requirement. Responsive to identifying an ICC profile during the search of the paper catalog that satisfies the customer precision requirement and can be used by the printer make and model associated with the original request, the computing device may transmit the ICC profile to the requesting printer via a network. In some instances, the computing device may determine the paper catalog lacks an ICC profile that satisfies the customer precision requirement and transmit an indication that no existing ICC profile is available.

IMAGE FORMING APPARATUS

An image forming apparatus includes image forming parts, developer containers, developer amount detecting parts, a use setting part and a limit setting part. The image forming parts execute an image forming operation for respective colors of developers. The developer container contains the developer to be supplied to the image forming part. The developer amount detecting part detects a developer amount contained in the developer container. The use setting part sets a use condition indicating whether each developer is usable or unusable. The limit setting part sets a limit condition indicating a limit value of the developer amount to be maintained in each developer container. The image forming part executes the image forming operation in accordance to the use condition set by the use setting part, to the developer amount detected by the developer amount detecting part, and to the limit condition set by the limit setting part. 1. An image forming apparatus , comprising:image forming parts executing an image forming operation capable of forming images for respective colors of developers;developer containers containing the developers of the respective colors to be supplied to the image forming parts;developer amount detecting parts detecting developer amounts of the respective colors contained in the developer containers;a use setting part setting a use condition indicating whether the developer is usable or unusable for each color; anda limit setting part setting a limit condition indicating a limit value of the developer amount of each color to be maintained in each developer container,wherein each of the image forming parts executes the image forming operation in accordance to the use condition set by the use setting part, to the developer amount detected by each of the developer amount detecting parts, and to the limit condition set by the limit setting part.2. The image forming apparatus according to claim 1 , whereineach of the image forming parts implements a ...

IMAGE PROCESSING APPARATUS, METHOD OF CONTROLLING THE SAME, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

An image processing apparatus and a method controlling the same extract an object included in image data and extract a highlight region of the object. A region including the highlight region and the pixels around the highlight region are obtained in the object. The lightness histogram of the pixels included in the region is generated, and the lightness of the pixels except the highlight region is adjusted based on the generated histogram. 1. An image processing apparatus comprising:a memory storing a set of instructions; andone or more processors that execute instructions of the set of the instructions and cause the image processing apparatus to function as:a first extraction unit configured to extract an object included in image data;a second extraction unit configured to extract a highlight region of the object extracted by the first extraction unit;a generation unit configured to generate a lightness histogram of pixels in a region including the highlight region extracted by the second extraction unit and a region around the highlight region in the object; andan adjustment unit configured to adjust the lightness of the pixels except the highlight region based on the lightness histogram generated by the generation unit.2. The apparatus according to claim 1 , wherein the generation unit obtains claim 1 , in the object claim 1 , a region including the highlight region and including pixels around the highlight region in an object obtained by excluding claim 1 , from a histogram target claim 1 , pixels of lightness greatly deviated from a mode of the lightness histogram of the object claim 1 , and generates a lightness histogram of pixels included in the region.3. The apparatus according to claim 1 , wherein a size of the region is a size at least 100 times a size of the highlight region.4. The apparatus according to claim 1 , whereinthe adjustment unit adjusts the lightness of the pixels using a lookup table, andthe lookup table has characteristics in which the ...

Creating image data for a tile on an image

A data structure includes entries corresponding to a plurality of tiles that form part of an image, where a given entry of the entries includes color information for a given tile of the plurality of tiles. Image data in the given tile is created using the color information of the given entry, where creating the image data in the given tile using the color information of the given entry is performed without using input image data for the given tile.

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

An image processing apparatus includes an acquisition unit that acquires, from image data acquired in such a manner that a chart formed by an image forming unit is read, a line signal value from pixel values of pixels for a line arranged in a first direction of the chart and a line representative value by using line signal values respectively acquired from a plurality of lines adjacent to each other in a second direction different from the first direction of the chart, and a determination unit that determines a portion where a streak is generated in the second direction by using a difference between a first representative value and a second representative value. 1. An image processing apparatus comprising:an acquisition unit configured to acquire, from image data acquired in such a manner that a chart formed by an image forming unit is read, a line signal value from pixel values of pixels for a line arranged in a first direction of the chart and a line representative value by using line signal values respectively acquired from a plurality of lines adjacent to each other in a second direction different from the first direction of the chart; anda determination unit configured to determine whether a streak is generated in a first position by using a difference between a first representative value and a second representative value, the first representative value being acquired by the acquisition unit at a second position that is read prior to the first position in the second direction and the second representative value being acquired by the acquisition unit at a third position that is read posterior to the first position in the second direction,wherein the second position is a position where the determination unit does not determine that a streak is generated.2. The image processing apparatus according to claim 1 , wherein the acquired line signal value is an average value of pixel values of a plurality of pixels arranged in the first direction of the chart.3. The ...

COLOR VERIFICATION SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAM

A color verification system of an aspect of the present invention includes an information processing apparatus that generates a job and an image forming apparatus that forms a color image on a sheet on the basis of the job. The information processing apparatus includes a storage portion that stores: information of the image forming apparatus under management; and target information including a target profile set to the image forming apparatus. Furthermore, when a plurality of different target profiles is set to the image forming apparatus, the information processing apparatus includes a job generation portion that generates the job: including image data containing a plurality of color verification images associated with the plurality of target profiles, respectively; and including an output setting. 1. A color verification system including an information processing apparatus that generates a job and an image forming apparatus that forms a color image on a sheet on the basis of the job , the information processing apparatus comprising:a storage portion configured to store: information of the image forming apparatus under management of the information processing apparatus; and target information including a target profile set to the image forming apparatus; anda job generation portion configured to generate, when a plurality of different target profiles is set to the image forming apparatus, the job: including image data containing a plurality of color verification images associated with the plurality of target profiles, respectively; and including an output setting.2. The color verification system according to claim 1 , wherein claim 1 ,in the generation of the job, the job generation portion generates the image data in which the plurality of color verification images provided with attribute information sets indicating image attributes is laid out, and also the output setting in which the plurality of target profiles is set for each of the attribute information sets ...

IMAGE FORMING APPARATUS

In an image forming apparatus, a first generation unit controls an image forming unit to form a first measurement image on a first sheet, controls a conveyance unit to convey the first sheet, controls the measurement unit to execute a first scan for measuring the first measurement image based on a measurement condition, adjusts the measurement condition based on a measurement result by the first scan, and controls the measurement unit to execute a second scan for measuring the first measurement image based on the adjusted measurement condition to obtain the first measurement result, and a second generation unit controls the image forming unit to form a second measurement image on a second sheet, controls the conveyance unit to convey the second sheet, and controls the measurement unit to measure the second measurement image to obtain the second measurement result. 1. An image forming apparatus comprising:an image forming unit configured to form a measurement image on a sheet;a conveyance unit configured to convey the sheet on which the measurement image is formed;a measurement unit configured to measure the measurement image formed on the sheet;a first generation unit configured to generate color data based on a first measurement result of the measurement unit; anda second generation unit configured to generate density data based on a second measurement result of the measurement unit,wherein the first generation unit controls the image forming unit to form a first measurement image on a first sheet, controls the conveyance unit to convey the first sheet, controls the measurement unit to execute a first scan for measuring the first measurement image based on a measurement condition, adjusts the measurement condition based on a measurement result obtained by the first scan, and controls the measurement unit to execute a second scan for measuring the first measurement image based on the adjusted measurement condition to obtain the first measurement result, andwherein ...

PIPELINE FOR HIGH DYNAMIC RANGE VIDEO CODING BASED ON LUMINANCE INDEPENDENT CHROMATICITY PREPROCESSING

The disclosure describes a high dynamic range video coding pipeline that may reduce color artifacts and improve compression efficiency. The disclosed pipeline separates the luminance component from the chrominance components of an input signal (e.g., an RGB source video) and applies a scaling of the chrominance components before encoding, thereby reducing perceivable color artifacts while maintaining luminance quality. 1. A method , comprising:receiving an input bitstream carrying an encoded image represented by a uniform color space model having chrominance components and a luminance component;decoding quantized chrominance and luminance components of the encoded image;inverse quantizing the quantized chrominance and luminance components;inverse scaling the inverse quantized chrominance components;converting the image represented by a uniform color space model into an image represented by an additive color space model.2. The method of claim 1 , wherein the first color space model comprises a Yu′v′ color space model claim 1 , wherein Y is the luminance component claim 1 , and wherein u′ and v′ are the chrominance components claim 1 , and wherein the second color space model comprises a red-green-blue (RGB) color space model.3. The method of claim 2 , further comprising: after inverse scaling the inverse quantized chrominance components claim 2 , applying a gamut mapping to the chrominance components to map any out of color gamut pixels back into a display gamut.4. The method of claim 3 , wherein applying a gamut mapping comprises mapping RGB values smaller than 0 to 0 and RGB values larger than 1 to 1.5. The method of claim 3 , further comprising: upsampling the chrominance components before inverse quantizing the chrominance components.6. The method of claim 3 , further comprising: applying an inverse electro-optical transfer function to the luminance component after inverse quantizing the luminance component.7. The method of claim 2 , wherein inverse scaling the ...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

An image forming apparatus includes an image process part that creates image data including pixel values of a process color image and pixel values of white which becomes a base of the process color image based on image forming data, and an image forming process part that forms the image on a medium using a process color developer and a white developer based on the image data. Wherein, the image process part that determines a black portion in which a combination of the pixel values of the process color image is regarded as black and a non-black portion in which the combination of the pixel values of the process color image is regarded as a color other than black, and identifies the pixel values of white for the base of the process color image in the image data such that an usage amount of the white developer for the black portion is less than that for the non-black portion. 1. An image forming apparatus , comprising:an image process part that creates image data including pixel values of a process color image and pixel values of white which becomes a base of the process color image based on image forming data for forming an image with predetermined colors; andan image forming process part that forms the image on a medium using a process color developer and a white developer based on the image data created in the image processing part, wherein determines a black portion in which a combination of the pixel values of the process color image is regarded as black and a non-black portion in which the combination of the pixel values of the process color image is regarded as a color other than black, and', 'identifies the pixel values of white for the base of the process color image in the image data such that an usage amount of the white developer for the black portion is less than that for the non-black portion., 'the image process part that'}2. The image forming apparatus according to claim 1 , whereinthe image process part determines that the usage amount of the white ...

PRINTING CONTROL DEVICE AND PRINTING CONTROL METHOD

A printing control device performs control to convert an input image with reference to a color conversion table that specifies a correspondence relationship between an input coordinate value and an amount of printing coloring material used, and to print an output image after the conversion. The printing control device includes a list printing control unit which performs control to print a list of images based on the input image for adjusting the color conversion table with reference to a list printing color conversion table that has a structure different from the color conversion table. 1. A printing control device which performs control to convert an input image with reference to a color conversion table that specifies a correspondence relationship between an input coordinate value and an amount of printing coloring material used and to print an output image after the conversion , the device comprising:a list printing control unit which performs control to print a list of images based on the input image for adjusting the color conversion table with reference to a list printing color conversion table that has a structure different from the color conversion table.2. The printing control device according to claim 1 ,wherein the number of grid points along a coordinate axis of an input color system in the list printing color conversion table is less than the number of grid points along a coordinate axis of an input color system in the color conversion table.3. The printing control device according to claim 1 ,wherein the number of gradations in the amount of coloring material used in the list printing color conversion table is less than the number of gradations in the amount of coloring material used in the color conversion table.4. The printing control device according to claim 1 ,wherein a plurality of components which configure an input color system in the list printing color conversion table include a brightness component corresponding to brightness and a color ...

IMAGE COMPRESSION

The invention provides methods that improve image compression and/or quality within the JPEG process by using a low-pass filter to remove high frequency components from image data, which removes blocking artifacts. Preferred embodiments apply the low-pass filter to the Chroma components after decompression prior to conversion into RGB color space. 1. A method for processing image data , the method comprising:obtaining a JPEG compressed image corresponding to an original image; anddecompressing the JPEG compressed image to produce an output image via a decompression operation that includes a low pass filter.2. The method of claim 1 , wherein decompressing the JPEG image comprises decoding the image to produce a YCbCr image having Luma and Chroma components.3. The method of claim 2 , wherein the low pass filter is applied to the Chroma components of the YCbCr image to produce a filtered YCbCr image.4. The method of claim 3 , further comprising transforming the filtered YCbCr image into the RGB color space to produce the output image.5. The method of claim 1 , wherein the output image is substantially similar to the original image.6. The method of claim 1 , wherein obtaining the JPEG compressed image comprises:receiving the original image; andperforming a discrete cosine transform (DCT) and quantization step on image data from the original image.7. The method of claim 6 , further comprising transforming the original image from the RGB color space into the YCbCr color space and blocking the image into blocks of pixels.8. The method of claim 6 , wherein the DCT is a type-II DCT.9. The method of claim 6 , wherein quantizing the DCT coefficients includes scaling the DCT coefficients and rounding the scaled DCT coefficients to the nearest integers.10. The method of claim 6 , further comprising compressing the quantized claim 6 , filtered DCT coefficients via entropy encoding to create the JPEG compressed image.11. The method of claim 10 , wherein entropy coding includes ...

IMAGE PROCESSING DEVICE, IMAGE FORMING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An image processing device includes an acquisition unit and an image processing unit. The acquisition unit acquires execution information regarding necessary processing units of plural processing units for performing an image process and an order in which the processing units are executed from an external apparatus. The image processing unit performs the image process by executing the necessary processing units in the order indicated by the acquired execution information. 1. An image processing device comprising:an acquisition unit that acquires execution information regarding necessary processing units of a plurality of processing units for performing an image process and an order in which the processing units are executed from an external apparatus; andan image processing unit that performs the image process by executing the necessary processing units in the order indicated by the acquired execution information.2. The image processing device according to claim 1 ,wherein the execution information includes details indicating that the order in which the plurality of processing units are executed is changed to a predetermined order in accordance with details of the image process.3. The image processing device according to claim 2 ,wherein the processing units include at least one of rotation processing for rotating an image and background detection and elimination for detecting a color of a background from the image and eliminating the color of the background.4. The image processing device according to claim 1 ,wherein the execution information includes details indicating that a part of the plurality of processing units that are executed in a predetermined order is not executed in accordance with details of the image process.5. The image processing device according to claim 2 ,wherein the execution information includes details indicating that a part of the plurality of processing units that are executed in a predetermined order is not executed in accordance with ...

COLOR CONVERSION TABLE GENERATION DEVICE, AND COLOR CONVERSION TABLE GENERATION METHOD

A color conversion table generation device, that generates a color conversion table defining a correspondence relationship between a coordinate value of input color space and a use amount of a plurality kinds of color materials, includes a boundary position setting unit that receives selection of setting of a boundary position at which use of a specific color material included in the plurality kinds of color materials is started or ended in a predefined axis provided in the input color space, a usability determination unit that determines whether the specific color material is to be used at a grid point defining the correspondence relationship or not, based on the boundary position in the predefined axis, and a use amount setting unit that sets a use amount of the specific color material at the grid point in a case where it is determined that the specific color material is to be used. 1. A color conversion table generation device that generates a color conversion table defining a correspondence relationship between a coordinate value of input color space and a use amount of a plurality kinds of color materials , the device comprising:a boundary position setting unit that receives selection of setting of a boundary position at which use of a specific color material included in the plurality kinds of color materials is started or ended in a predefined axis provided in the input color space;a usability determination unit that determines whether the specific color material is to be used at a grid point defining the correspondence relationship or not, based on the boundary position in the predefined axis; anda use amount setting unit that sets a use amount of the specific color material at the grid point in a case where it is determined that the specific color material is to be used.2. The color conversion table generation device according to claim 1 ,wherein the use amount setting unit uses a function which obtains a value representing a use amount of a color material ...

SYSTEM AND METHOD FOR PRODUCING A COLOR IMAGE ON PRINT MEDIA

A method, system, and recording medium are disclosed for producing a color image on a print media. The method includes (a) receiving a selection of a color profile for a print job on a user interface, the color profile being associated with an attribute of a print media; (b) determining if a tray on a printer stores a first print media corresponding to the selected color profile based on the attribute associated with the selected color profile; (c) when the tray on the printer stores the first print media corresponding to the selected color profile, (c1) performing a color conversion for the print job using the selected color profile; and (c2) printing the print job with the first print media corresponding to the selected color profile from the tray by a print engine on the printer. 1. A method for producing a color image on a print media , the method comprising:(a) selecting a color profile from a plurality of color profiles for a print job on a user interface, the color profile being associated with a plurality of attributes of a print media, and wherein the plurality of attributes of the print media include weight, brightness, whiteness, color, and coating;(b) automatically determining if a tray from a plurality of trays on a printer stores a first print media corresponding to the selected color profile based on the plurality of attributes associated with the selected color profile; and (c1) performing a color conversion for the print job using the selected color profile, and', '(c2) printing the print job with the first print media corresponding to the selected color profile from the tray by a print engine on the printer., '(c) when the tray on the printer stores the first print media corresponding to the selected color profile,'}2. The method of claim 1 , comprising: (d1) creating a new color profile corresponding to a second print media being stored on the printer,', '(d2) performing a color conversion for the print job using the created color profile, and', ...

Image Reading Apparatus and Image Reading Method That Reduce Error in Color Reproduction Due to Variation in Light Source Unit, and Recording Medium Therefor

An image reading apparatus includes a light source unit and an image reading unit. The light source unit radiates white light containing a light having a first spectrum and a light having a second spectrum. The image reading unit generates image data in accordance with light reflected from the original document. The reflected light contains the light having the first spectrum and the light having the second spectrum. The image reading unit determines a correction value for calibrating a light amount of the light having the first spectrum as a ratio of a calibration reference value to a reflection light amount of the light having the first spectrum from a calibration document advance-prepared for calibration of the light having the second spectrum. The calibration reference value is set as a reference reflection light amount of the light having the first spectrum. 1. An image reading apparatus for reading images on original documents , the apparatus comprising:a light source unit including a first light source and a second light source, the first light source emitting a light having a first spectrum, the second light source emitting a light having a second spectrum, the light source unit radiating white light containing the light having the first spectrum and the light having the second spectrum; andan image reading unit that generates image data in accordance with light reflected from the original document, the reflected light containing the light having the first spectrum and the light having the second spectrum; whereinthe image reading unit determines a correction value for calibrating a light amount of the light having the first spectrum as a ratio of a calibration reference value to a reflection light amount of the light having the first spectrum from a calibration document advance-prepared for calibration of the light having the second spectrum, the calibration reference value being set as a reference reflection light amount of the light having the first ...

IMAGE PROCESSING METHOD APPLIED TO AN RGB-IR SENSOR AND RELATED IMAGE PROCESSING DEVICE THEREOF

An image processing device applied to an RGB-IR sensor includes an interpolation unit and a color correction unit. Pixels included in the RGB-IR sensor are arranged into a plurality of bayer pattern units. The interpolation unit generates interpolation values of a red color component, a green color component, a blue color component, and an IR component of each pixel of each bayer pattern unit of the plurality of bayer pattern units according to gray levels of red pixels, green pixels, blue pixels, and IR pixels located in predetermined positions of the plurality of bayer pattern units. The color correction unit generates correction values of the red color component, the green color component, and the blue color component of the each pixel according to a correction matrix corresponding to the each pixel and the interpolation values. 1. An image processing device applied to an RGB-IR sensor , wherein pixels comprised in the RGB-IR sensor are arranged into a plurality of bayer pattern units , and each bayer pattern unit of the plurality of bayer pattern units comprises a red pixel , a green pixel , a blue pixel , and an IR pixel , the image processing device comprising:an interpolator generating interpolation values of a red color component, a green color component, a blue color component, and an IR component of each pixel of the each bayer pattern unit according to gray levels of red pixels, green pixels, blue pixels, and IR pixels located in predetermined positions of the plurality of bayer pattern units; anda color corrector generating correction values of the red color component, the green color component, and the blue color component of the each pixel according to a correction matrix corresponding to the each pixel and the interpolation values of the red color component, the green color component, the blue color component, and the IR component of the each pixel, wherein the correction matrix corresponds to the interpolation values of the red color component, the ...

Color measurement and calibration

Embodiments described herein disclose a color measurement device and method for use with cameras or other imaging devices. The color measurement device may be configured to determine many different colors via a commonly owned device. Embodiments utilize sinusoidal grayscale rings to determine an exact color match of an unknown color, even if there is perspective distortion of an obtained image.

SYSTEMS AND METHODS FOR AUTOMATED COLOR CORRECTION

Systems, methods, and non-transitory computer-readable media can identify an object depicted in an image. True color information associated with the object is obtained from a true color database comprising true color information for a plurality of objects. A color delta associated with the object is determined based on the true color information and captured color information associated with the object. The image is modified based on the color delta. 1. A computer-implemented method comprising:identifying, by a computing system, an object depicted in an image;obtaining, by the computing system, true color information associated with the object from a true color database, the true color database comprising true color information for a plurality of objects;determining, by the computing system, a color delta associated with the object based on the true color information and captured color information associated with the object; andmodifying, by the computing system, the image based on the color delta.2. The computer-implemented method of claim 1 , wherein the identifying the object depicted in the image is performed automatically based on one or more machine learning models.3. The computer-implemented method of claim 1 , whereinthe true color information comprises a true color RGB value, andthe captured color information comprises a captured color RGB value.4. The computer-implemented method of claim 3 , wherein the color delta comprises a difference of the true color RGB value and the captured color RGB value.5. The computer-implemented method of claim 4 , wherein the modifying the image based on the color delta comprises applying the color delta to each pixel in the image.6. The computer-implemented method of claim 3 , wherein the true color information associated with the object comprises a plurality of RGB values claim 3 , andfurther wherein the plurality of RGB values are indicative of the object containing a plurality of colors.7. The computer-implemented method ...

COLOR CORRECT IMAGING

Systems and methods for providing remote approval of an image for printing are provided. One system includes a processing circuit in communication with an image capturing device that is configured to capture an image of a printed product. The processing circuit is configured to process the captured image into a processed image accurate to within a tolerance in a color space to indicate the visual appearance of one or more colors. The color space is a standardized color space, such as sRGB or CIELAB. The processing circuit is further configured to transmit the processed image to a display located remote from the image capturing device and to receive an input signal from a remote input device to allow a user to approve or reject the displayed processed image for printing on a print device. 1. A system comprising:an interface configured to receive data representative of a captured image of a printed product from an image capturing device of a printing press; and process the captured image into a processed image within a standardized color space, the processed image comprising data that, upon display on a display device, is accurate to a visual appearance of colors on the printed product within a tolerance of no greater than 4 ΔE of the colors in the standardized color space, and', 'transmit the processed image to a display device., 'a processing circuit communicably connected to the interface and configured to2. The system of claim 1 , wherein the tolerance is not greater than 2 ΔE of the colors in the standardized color space.3. The system of claim 1 , wherein the color space is a sRGB or a CIELAB color space.4. The system of claim 1 , wherein the processed image comprises information from greater than three channels in a visible light spectrum.5. The system of claim 1 , wherein the processing circuit is further configured to:receive an input signal from an input device indicating input from a user with respect to the processed image shown on the display device; ...

IMAGE PROCESSING METHOD AND IMAGE PROCESSING DEVICE

An image processing method and an image processing device are disclosed. The image processing method includes following steps: acquiring a first image, wherein the first image includes multiple pixels; acquiring color compensating information from a user interface; calibrating the value of each of the multiple pixels based on the color compensating information to generate a second image. 1. An image processing method , comprising:acquiring a first image comprising a plurality of pixels;acquiring color compensating information from an user interface; andcalibrating a pixel value of each of the plurality of pixels based on the color compensating information to generate a second image.2. A image processing method according to claim 1 , further comprising:outputting a plurality of color test plates;acquiring a test result relative to each of the plurality of color test plates from the user interface; andgenerating the color compensating information according to the test result.3. The image processing method according to claim 1 , further comprising:acquiring designated color information from the user interface;determining whether at least one of the plurality of pixels of the first image is matched to the designated color information;when at least one of the plurality of pixels of the first image is matched to the designated color information, acquiring a first part relative to the pixel matched to the designated color information, and generating a hint message relative to the first part; andcombining the first image with the hint message to generate a third image;wherein the designated color information comprises a designated color code or a designated color name.4. The image processing method according to claim 3 , wherein the designated color information comprises an error tolerance of color.5. The image processing method according to claim 1 , further comprising:acquiring a second part of the first image from the user interface; andgenerating color information ...

PROFILE ADJUSTMENT SYSTEM, PROFILE ADJUSTMENT DEVICE, AND PROFILE ADJUSTMENT METHOD

A profile adjustment system adjusts a profile to be used for converting a coordinate value in a color space, based on an adjustment target at an adjustment point indicating a color to be adjusted. The profile adjustment system includes a coordinate receiving unit configured to display on a display unit an input field for coordinates of the adjustment point, and to receive an input of the coordinates of the adjustment point, and a color display processing unit configured to display on the display unit a color corresponding to the coordinates, the input of which has been received, in association with displaying of the coordinates. 1. A profile adjustment system adjusting a profile used to convert a coordinate value in a color space , based on an adjustment target at an adjustment point indicating a color to be adjusted , comprising:a coordinate receiving unit configured to display on a display unit an input field for coordinates of the adjustment point, and to receive an input of the coordinates of the adjustment point; anda color display processing unit configured to display on the display unit a color corresponding to the received coordinates, in association with displaying of the coordinates.2. The profile adjustment system according to claim 1 , whereinthe coordinate receiving unit is configured to display on the display unit adjustment point information about the adjustment point in a list including at least the coordinates of the adjustment point.3. The profile adjustment system according to claim 2 , whereinthe color display processing unit is configured to display the color corresponding to the coordinates on at least a part of a background of the list.4. The profile adjustment system according to claim 2 , whereinthe color display processing unit is configured to display on the display unit, separately from the list, the color corresponding to the coordinates of the adjustment point in association with identification information for identifying the adjustment ...

METHOD AND APPARATUS FOR COLOR PRINT MANAGEMENT

In a color printing environment, functions for printing color management are dissociated. An abstraction layer is also provided to facilitate setting and evaluation of all factors relating to color print and prediction. 1. A method of establishing a relationship between virtual color space and actual color space , comprising:building a calibration range in three-dimensional (3D) imaginary space;converting said 3D calibration range to actual color space;printing a source file for real-time color measurement to establish a print space; andestablishing a correspondence between colorimetric values in actual color space and the imaginary 3D space to map the actual space to the imaginary space and the imaginary space to the print space in accordance with said converting.2. A computer implemented method for establishing a proof before a post-printing operation (PPO) , comprising:said processor defining a link between a color space before said PPO and a color space after said PPO by measuring a printing sample before said PPO and after said PPO;said processor applying a colorimetric function to said measurement to simulate in a phase before said PPO a result in a phase after said PPO; andsaid processor applying said link to interpolate values in said color space after said PPO to modify said color space before said PPO in accordance with said colorimetric function. This patent application is a Divisional of U.S. patent application Ser. No. 15/150,184, filed May 9, 2016, which is a Divisional of U.S. patent application Ser. No. 13/843,768, filed Mar. 15, 2013, the entirety of each which is incorporated herein by this reference thereto.The invention relates to color printing. More particularly, the invention relates to color print management.State of the art color management systems try to solve all of the challenges of color management in the context of printing in a few operations and with minimum color definition. However, a color management workflow for printing must ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM

Provided is an image processing apparatus that includes a first color space converting unit configured to convert image data constituted by a color space for printing into image data constituted by a color space for display; and a second color space converting unit configured to convert image data constituted by the color space for display into image data constituted by the color space for printing. 1. An image processing apparatus comprising:a first color space converting unit configured to convert image data constituted by a color space for printing into image data constituted by a color space for display; anda second color space converting unit configured to convert image data constituted by the color space for display into image data constituted by the color space for printing.2. The image processing apparatus according to claim 1 , wherein the first color space converting unit converts image data constituted by the color space for printing into image data constituted by the color space for display using a program for monitor display.3. The image processing apparatus according to claim 1 , wherein the second color space converting unit converts image data constituted by the color space for display into image data constituted by the color space for printing using an ICC profile.4. The image processing apparatus according to claim 1 , wherein the color space for printing is a CMYK color space and the color space for display is an RGB color space.5. The image processing apparatus according to claim 1 , wherein the first color space converting unit converts image data constituted by the color space for printing having a predetermined attribute into image data constituted by the color space for display.6. The image processing apparatus according to claim 5 , wherein the predetermined attribute includes at least any one of image claim 5 , graphics claim 5 , and text.7. An image processing method comprising:converting image data constituted by a color space for ...

Host device for transmitting print data to printer and method of rendering print data via host device

A host device for transmitting print data to a printer is configured to generate bitmap image data by using the print data, to extract object attribute information from objects forming the print data, to convert the generated bitmap image data and the extracted object attribute information into a format of a printer command which is capable of being processed by the printer, and to transmit the converted bitmap image data and the converted object attribute information to the printer.

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM

An image processing apparatus according to the present invention includes an image forming unit configured to form an image, a measuring unit configured to measure the formed image, a control unit configured to control execution of a single-color calibration to be performed to correct reproduction characteristics of a single-color formed by the image forming unit based on a measuring result of a single-color image formed with a single-color recording agent and execution of a multi-color calibration to be performed to correct reproduction characteristics of a multi-color image formed by the image forming unit based on a measuring result of a multi-color formed with a plurality of recording agents, and a selection unit configured to select whether to cause the control unit to perform the multi-color calibration after completing the single-color calibration or cause the control unit to perform any one of the single-color calibration and the multi-color calibration. 1. An image processing apparatus comprising:a control unit configured to execute a single-color calibration for generating single-color correction data used for formation of a single-color image by a printer and a multi-color calibration for generating multi-color correction data used for formation of a multi-color image by the printer; anda reception unit configured to receive an instruction to execute the single-color calibration and the multi-color calibration from a user,wherein, based on the instruction from the user received by the reception unit, the control unit executes the single-color calibration and then the multi-color calibration.2. The image processing apparatus according to claim 1 , wherein claim 1 , based on the instruction from the user received by the reception unit claim 1 , the control unit executes the single-color calibration claim 1 , and then executes the multi-color calibration without receiving a further instruction from the user.3. The image processing apparatus according to ...

IMAGE PROCESSING METHOD

An image processing method is provided. The image processing method includes following steps. Determine an image display space of an CIELCH color space corresponding to an original color space. Convert a plurality of first pixel data of the original color space to a plurality of second pixel data of the CIELCH color space. Perform an image adjustment process to the second pixel data of the CIELCH color space to obtain a plurality of third pixel data of the CIELCH color space, wherein the third pixel data is restricted within the image display space. Convert the third pixel data of the CIELCH color space to a plurality of fourth pixel data of the original color space to set an image displayed by a display apparatus. 1. An image processing method , comprising:determining an image display space of an CIELCH color space corresponding to an original color space;converting a plurality of first pixel data of the original color space to a plurality of second pixel data of the CIELCH color space;performing an image adjustment process to the plurality of second pixel data of the CIELCH color space to obtain a plurality of third pixel data of the CIELCH color space, wherein the third pixel data are restricted within the image display space; andconverting the plurality of third pixel data of the CIELCH color space to a plurality of fourth pixel data of the original color space to set an image displayed by a display apparatus.2. The image processing method according to claim 1 , wherein the step of determining an image display space of an CIELCH color space corresponding to an original color space comprising:converting all color combinations of the original color space to a plurality of image reference data of the CIELCH color space;determining a display boundary of the CIELCH color space corresponding to the original color space according to the image reference data; anddefining a space in the display boundary to the image display space.3. The image processing method according ...

IMAGE PROCESSING APPARATUS AND IMAGE FORMING APPARATUS

An area separation unit determines a character in an input image on the basis of image data of the input image. The filter processing unit performs a filter process for a character edge area of a character in an input image, and the color conversion unit performs a color conversion process for a pixel in the character edge area in accordance with a color conversion characteristic that (a) is different from a color conversion characteristic for a pixel other than a pixel in the character edge area and (b) compensates a color error due to the filter process. 1. An image processing apparatus , comprising:an area separation unit that determines a character in an input image on the basis of image data of the input image;a filter processing unit that performs a filter process for a character edge area of the character; anda color conversion unit that performs a color conversion process for a pixel in the character edge area in accordance with a color conversion characteristic that (a) is different from a color conversion characteristic for a pixel other than a pixel in the character edge area and (b) compensates a color error due to the filter process.2. The image processing apparatus according to claim 1 , wherein the color conversion unit performs the color conversion process for the pixel in the character edge area in accordance with the color conversion characteristic corresponding to a strength of the filter process.3. The image processing apparatus according to claim 1 , whereinthe input image is an image scanned by an image scanning device; andthe color conversion unit performs the color conversion process for the pixel in the character edge area in accordance with the color conversion characteristic corresponding to a resolution at which the input image was scanned by the image scanning device.4. An image forming apparatus claim 1 , comprising:an image processing apparatus, anda printing device;wherein the image processing apparatus comprises:an area separation ...

IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An image processing apparatus includes an extraction unit, a memory controller, and a transfer unit. The extraction unit extracts, on the basis of image information, pieces of color information having a high frequency of occurrence as color information that is necessary to perform image processing. The memory controller causes a first memory to store a color information group including the pieces of color information extracted by the extraction unit. The transfer unit transfers the color information group from the first memory to a second memory, an access time of the second memory being shorter than an access time of the first memory. 1. An image processing apparatus comprising:an extraction unit that extracts, on the basis of image information, pieces of color information having a high frequency of occurrence as color information that is necessary to perform image processing;a memory controller that causes a first memory to store a color information group including the pieces of color information extracted by the extraction unit; anda transfer unit that transfers the color information group from the first memory to a second memory, an access time of the second memory being shorter than an access time of the first memory.2. The image processing apparatus according to claim 1 , wherein the color information group includes the pieces of color information extracted by the extraction unit and pieces of color information generated by changing lightness of the extracted pieces of color information.3. The image processing apparatus according to claim 1 , wherein the memory controller rearranges the pieces of color information included in the color information group in order of lightness and causes the first memory to store the color information group.4. The image processing apparatus according to claim 1 , further comprising:a resolution decreasing unit that decreases a resolution of the image information,wherein the extraction unit performs extraction on the basis of the ...

INTELLIGENT MEDIA PROFILE MANAGEMENT

Systems and methods manage information relating to paper media to enhance the quality of printing by printers. Systems and methods efficiently maintain color management profiles for different papers and ensure that the most appropriate (e.g., optimal) color management profile is employed for color conversion on a specific paper. In particular, embodiments may employ dynamic management of data stored in paper catalogs of printing systems. As such, a paper catalog of a printer can effectively associate a paper with a color management profile that provides the best possible color reproduction on that paper. 120-. (canceled)21. A method for managing paper information in a printing system , comprising:storing, in one or more computer storage devices, a paper catalog, the paper catalog including records for measured papers, each measured paper being defined by a respective color information and a respective color management profile;grouping, by one or more computer processors, the measured papers into a plurality of groups according to shared characteristics; and selecting, by one or more computer processors, a representative one of the measured papers; and', 'updating, by one or more computer processors, the paper catalog to convert other measured papers in the group to standard papers by recording, for the other measured papers, a reference to the representative measured paper, wherein the standard papers are associated with the color management profile of the representative measured paper., 'for each group22. The method of claim 21 , wherein the shared characteristics relate to the respective color information for the measured papers.23. The method of claim 22 , further comprising determining claim 22 , by the one or more computer processors claim 22 , respective color information values for the measured papers claim 22 , wherein the measured papers are grouped according to the color information values for the measured papers claim 22 , and the groups are defined ...

INTELLIGENT MEDIA PROFILE MANAGEMENT

Systems and methods manage information relating to paper media to enhance the quality of printing by printers. Systems and methods efficiently maintain color management profiles for different papers and ensure that the most appropriate (e.g., optimal) color management profile is employed for color conversion on a specific paper. In particular, embodiments may employ dynamic management of data stored in paper catalogs of printing systems. As such, a paper catalog of a printer device can effectively associate a paper with a color management profile that provides the best possible color reproduction on that paper. 120-. (canceled)21. A method for managing paper information in a printing system , comprising: first records associated with measured papers, the first records including respective color information and a respective color management profile for each of the measured papers, and', 'second records associated with standard papers, the second records including respective color information and a respective reference to one of the measured papers for each of the standard papers;, 'storing, in one or more computer storage devices, a paper catalog, the paper catalog includingidentifying, by one or more processors, an additional measured paper, wherein the additional measured paper is not associated with any of the records in the paper catalog;determining, by the one or more processors, color information and a color management profile for the additional measured paper;storing, in the one or more computer storage devices, a new first record for the additional measured paper in the paper catalog, the new first record including the color information and the color management profile for the additional measured paper; andresponsive to storing the new first record for the additional measured paper in the paper catalog, updating, by the one or more processors, the references for the second records in the paper catalog.22. The method of claim 21 , wherein updating the ...

IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM

A color of an image that is printed based on a second color value obtained by converting a color value of a specific color falling outside a color gamut without using a first conversion table is closer to the specific color falling outside the color gamut than a color of an image that is printed based on a first color value obtained by converting the color value of the specific color falling outside the color gamut by using the first conversion table. 1. An image processing apparatus comprising:a reading unit configured to read an image of a document to generate image data;a conversion unit configured to convert a color value of a color, from among colors of the image data, falling within a color gamut of the reading unit into a first color value by using a first conversion table, and convert a color value of a specific color, from among the colors of the image data, falling outside the color gamut of the reading unit into a second color value without using the first conversion table; anda printing unit configured to print an image on a sheet based on the color values converted by the conversion unit,wherein a color of an image that is printed based on the second color value obtained by converting the color value of the specific color falling outside the color gamut without using the first conversion table is closer to the specific color falling outside the color gamut than a color of an image that is printed based on the first color value obtained by converting the color value of the specific color falling outside the color gamut by using the first conversion table.2. The image processing apparatus according to claim 1 , wherein the conversion unit converts the color value of the specific color claim 1 , from among the colors of the image data claim 1 , falling outside the color gamut of the reading unit into the second color value by using a second conversion table different from the first conversion table.3. The image processing apparatus according to claim 2 , ...

SYSTEMS AND METHODS FOR SHARPENING MULTI-SPECTRAL IMAGERY

Discussed herein are apparatuses, systems, and methods for sharpening multi-spectral image data using panchromatic image data. A method can include using a Householder transform in such sharpening. 1. A non-transitory machine-readable medium including instructions stored thereon which , when executed by processing circuitry , configure the processing circuitry to perform operations to sharpen a multi-spectral (MS) image using data from a panchromatic (PAN) image , the operations to:combine PAN image data with first MS image data to create a combined matrix of image data;append a square zero matrix to the combined matrix to create an appended matrix;transform the appended matrix by performing Householder QR orthogonalization on the appended matrix to create a transformed matrix;separate a first matrix, Q, and determine a second matrix, R, based on the transformed matrix;modify PAN image data so that modified PAN image data includes a mean and standard deviation that is about equal to a mean and standard deviation of data in a first row of the first matrix;upsample at least a portion of the first matrix to create an upsampled Q matrix data;replace the first row of the upsampled Q matrix data with the modified PAN image data to create a modified Q matrix;transform the modified Q matrix by multiplying the modified Q matrix by the determined second matrix to create second MS image data, the first MS image data including a resolution less than a resolution of the second MS image data; andprovide signals that cause a display to provide a view of the second MS image data.2. The non-transitory machine-readable medium of further including instructions stored thereon which claim 1 , when executed by a machine claim 1 , configure the machine to perform operations further to:create the PAN image with about a same resolution as a resolution of the MS image by downsampling PAN image data or determining the PAN image data from the MS image data.3. The non-transitory machine- ...

COLOR TABLE COMPRESSION

In some examples, a print cartridge component includes a memory device comprising coefficients based on a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the coefficients useable to produce a reconstructed difference table, and residue information representing a difference of the color table and the reconstructed difference table. 1. A print cartridge component comprising: quantized coefficients based on a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table; and', 'residue information representing a difference of the color table and the reconstructed difference table,, 'a memory device comprisingwherein the quantized coefficients and the residue information are accessible by a printing device to reconstruct a color table and perform a color transformation between color spaces when printing.2. The print cartridge component of claim 1 , wherein the residue information comprises a plurality of nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table claim 1 , wherein the memory device comprises a residue table that includes the plurality of residue nodes.3. The print cartridge component of claim 2 , wherein the memory device comprises a residue bit assignment table useable to decode the residue table.4. The print cartridge component of claim 3 , wherein the residue bit assignment table indicates how many bits are assigned to each residue node of the plurality of residue nodes.5. The ...

IMAGE PROCESSOR AND STORAGE MEDIUM STORING PROGRAM

An image processor sets the dot value to a value for forming a dot in a case where the dot forming condition is satisfied; sets the dot value to a value for forming no dot in a case where the dot forming condition is not satisfied and the target pixel is not the edge pixel; sets the dot value to a value for forming a dot in a case where the dot forming condition is not satisfied and a particular condition is satisfied; and sets a distribution error value to a smaller value than another error value in a case where the dot forming condition is not satisfied and the particular condition is satisfied and thereby the dot value is set to the value for forming a dot. 1. An image processor for a printer , comprising:a processor; and acquiring original image data representing an original image including a plurality of pixels, the original image data being indicative of a density of each of the plurality of pixels;', 'determining whether a dot forming condition of an error diffusion method is satisfied by using a density of a target pixel in the plurality of pixels and an error value distributed to the target pixel;', 'determining whether the target pixel is an edge pixel constituting an edge together with a surrounding pixel, the edge pixel having a higher density than a density of the surrounding pixel;', setting the dot value to a value indicative of forming a dot in a case where the dot forming condition is satisfied;', 'setting the dot value to a value indicative of forming no dot in a case where the dot forming condition is not satisfied and the target pixel is not the edge pixel; and', 'setting the dot value to a value indicative of forming a dot in a case where the dot forming condition is not satisfied and a particular condition is satisfied, the particular condition including that the target pixel is the edge pixel;, 'determining a dot value indicative of a dot formation state of the target pixel, the determining the dot value including, 'setting a distribution ...

SYSTEM AND METHOD FOR PRINTING A SPOT COLOR PROOF

A method, non-transitory computer readable medium and apparatus for printing a spot color proof are disclosed. For example, the method includes receiving a request to print a print job, determining one or more spot colors in the print job, translating the one or more spot colors into a respective color value of a color model used by a printer that is selected to print the print job, generating the spot color proof that includes a patch of each one of the one or more spot colors printed in the respective color value and the respective color value, and printing the spot color proof. 1. A method for printing a spot color proof , comprising:receiving, by a processor, a request to print a print job; 'scanning, by the processor, a digital code of the print job to identify a call for a spot color;', 'determining, by the processor, one or more spot colors in the print job, wherein the determining comprisestranslating, by the processor, the one or more spot colors into a respective color value of a color model used by a printer that is selected to print the print job;generating, by the processor, the spot color proof that includes a patch of each one of the one or more spot colors printed in the respective color value and the respective color value;printing, by the processor, the spot color proof;receiving, by the processor, a confirmation that the respective color value of the each one of the one or more spot colors in the spot color proof is acceptable; andprinting, by the processor, the print job.2. (canceled)3. (canceled)4. The method of claim 1 , wherein the translating comprises:determining, by the processor, a type of media and a destination profile associated with the each one of the one or more spot colors; andfinding, by the processor, the respective color value of the each one of the one or more spot colors in a pre-defined spot color library based on the type of media and the destination profile.5. The method of claim 4 , wherein the type of media and the ...

OUTPUT PROCESSING SYSTEM, OUTPUT PROCESSING DEVICE, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM

An output processing system includes a source device and a destination device. The source device transfers output information created in anticipation of a target output device in an output color space whose components are colors of color material, together with target device property information indicating characteristics of the target output device. The destination device receives the output information and the target device property information transferred from the source device, creates color conversion information from the target device property information and actual device property information indicating characteristics of the destination device itself, and conducts color conversion of the output information. 1. An output processing system comprising: 'transfer output information representing an image to be output created in anticipation of a target output device in an output color space whose components are colors of a color material used to form the output on the target output device, together with target device property information indicating characteristics of the target output device to a destination device; and', 'a source device including at least one hardware processor and a storage medium storing executable instructions that cause the hardware processor to receive the output information and the target device property information transferred from the source device,', 'create color conversion information from the target device property information and actual device property information indicating characteristics of the destination device itself, and', 'conduct color conversion of the output information., 'the destination device including at least one hardware processor and a storage medium storing executable instructions that cause the hardware processor to2. The output processing system according to claim 1 , whereinthe source device is additionally configured to transfer, together with the output information, supplementary information used together ...

COLOR PATCH GENERATION APPARATUS AND IMAGE FORMING APPARATUS, AND NON- TRANSITORY COMPUTER READABLE MEDIUM

A color patch generation apparatus includes a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size. 1. A color patch generation apparatus comprising:a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size.2. The color patch generation apparatus according to claim 1 ,wherein the first color space is an apparatus-dependent color space, andthe second color space is an apparatus-independent color space.3. The color patch generation apparatus according to claim 2 ,wherein the first color space is RGB, andthe second color space is Lab.4. An image forming apparatus comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the color patch generation apparatus according to ; and'}a control unit that generates color conversion profile data, from pairs of values obtained by reading the color patches for first color space value acquisition and values obtained by color measurement of the color patches for second color space value acquisition.5. The image forming apparatus according to claim 4 , further comprising:a reading unit, provided inside the image forming apparatus, that reads the color patches for first color space value acquisition.6. A non-transitory computer readable medium storing a program causing a computer to ...

DYNAMICALLY CREATING AND PRESENTING A THREE-DIMENSIONAL (3D) VIEW OF A SCENE BY COMBINING COLOR, BRIGHTNESS, AND INTENSITY FROM MULTIPLE SCAN DATA SOURCES

A method, system, and computer program product provide the ability to dynamically generate a three-dimensional (3D) scene. A red green blue (RGB) image (in RGB color space) of the 3D scene is acquired. The RGB image is converted from RGB color space to a luminance (Y) and chrominance (UV) image in YUV color space (hat includes Y information and UV information). Reflectance information of the 3D scene is acquired from a laser scanner. Based on a blending function, the luminance information is blended with the reflectance information resulting in a blended YUV image. The blended YUV image is converted from YUV color space into RGB color space resulting in a blended RGB image that is output. 1. A computer-implemented method for dynamically generating a three-dimensional (3D) scene , comprising:acquiring a red green blue (RGB) image of the 3D scene, wherein the RGB image is in RGB color space;converting the RGB image from RGB color space to a luminance (Y) and chrominance (UV) image in YUV color space comprising luminance (Y) information and UV information;acquiring reflectance information of the 3D scene from a laser scanner;based on a blending function, blending the luminance information with the reflectance information resulting in a blended YUV image, wherein the blending function provides for completely replacing the luminance information with the reflectance information;converting the blended YUV image from YUV color space into RGB color space resulting in a blended RGB image; andoutputting the blended RGB image.2. The computer-implemented method of claim 1 , wherein the RGB image is acquired from a camera.3. (canceled)4. A computer-implemented method for dynamically generating a three-dimensional (3D) scene claim 1 , comprising:acquiring a red green blue (RGB) image of the (3D) scene, wherein the RGB image is in RGB color space;converting the RGB image from RGB color space to a luminance (Y) and chrominance (UV) image in YUV color space comprising luminance (Y) ...

COLOR LEARNING

A computing device, programmed to: acquire a color image and transform the color image into a color-component map. The computer can be further programmed to process the color-component map to detect a traffic sign by determining spatial coincidence and determining temporal consistency between the color-component map and the traffic sign. 1. A method , comprising:acquiring a color image;transforming the color image into color-component maps; andprocessing the color-component maps to detect a traffic sign by determining spatial coincidence and temporal consistency between the color-component maps and the traffic sign.2. The method of claim 1 , further comprising transforming the color image into color-component maps by converting three-element RGB vectors representing pixels of the color image into eleven-element color-name vectors based on RGB to color-component transforms.3. The method of claim 2 , wherein each eleven-element vector color-name vector represents a single color.4. The method of claim 3 , wherein color bases are generated by K-means clustering with training data that determines a probability of occurrence of the eleven-element color-name vectors.5. The method of claim 4 , wherein the training data includes images including traffic signs.6. The method of claim 1 , further comprising processing the color-component maps by segmenting the color-component maps using thresholding.7. The method of claim 1 , further comprising processing the color-component maps based on spatial coincidence claim 1 , wherein segmented color-components are retained based on matching a color-component included in the traffic sign while spatially nearby color-components match color-components included in the traffic sign.8. The method of claim 7 , further comprising: acquiring a second color image claim 7 , transforming the second color image into second color-component maps claim 7 , segmenting the second color-component maps claim 7 , determining spatial coincidence and ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a fixing device and an image forming apparatus body. The fixing device includes a pressure unit, a heating unit, a pressure adjuster that adjusts a pressure between the pressure unit and the heating unit, and a fixing-device-side connecting device. The image forming apparatus body to which the fixing device is detachably attached includes an electrical power unit, a drive device to which electrical power is supplied from the electrical power unit so as to drive the pressure adjuster, and a body-side connecting device connected to the electrical power unit. When the fixing device is detached from the image forming apparatus body, the body-side connecting device and the fixing-device-side connecting device are disconnected from each other and electrical power supply to the drive device is interrupted. 1. An image forming apparatus comprising: a pressure unit,', 'a heating unit that faces the pressure unit,', 'a pressure adjuster that adjusts a pressure between the pressure unit and the heating unit, and', 'a fixing-device-side connecting device; and, 'a fixing device that includes'} an electrical power unit,', 'a drive device to which electrical power is supplied from the electrical power unit so as to drive the pressure adjuster, and', 'a body-side connecting device connected to the electrical power unit,, 'an image forming apparatus body to which the fixing device is detachably attached and which includes,'}wherein the fixing-device-side connecting device is disconnectably connected to the body-side connecting device, andwherein, when the fixing device is detached from the image forming apparatus body, the body-side connecting device and the fixing-device-side connecting device are disconnected from each other and electrical power supply to the drive device is interrupted.2. The image forming apparatus according to claim 1 ,wherein the electrical power is supplied to the drive device through the body-side connecting device, the ...

COLOR CONVERSION PROCESSING APPARATUS, COLOR CONVERSION PROCESSING METHOD, AND NON-TRANSITORY STORAGE MEDIUM

A color conversion processing apparatus acquires spot color information, which is capable of defining a spot color with device-dependent color values. The color conversion processing apparatus further acquires a reference profile and an updated profile, and using the spot color information, converts an image signal of a spot color plate into a first image signal of a process color plate. Then, by having the reference profile and the updated profile act successively thereon, the color conversion processing apparatus converts the first image signal into a second image signal of a process color plate. 1. A color conversion processing apparatus for converting input image signals , which include image signals of process color plates and an image signal of a spot color plate , into output image signals of process color plates , comprising:a spot color information acquirer configured to acquire spot color information, which is capable of defining a spot color with device-dependent color values;a profile acquirer configured to acquire a reference profile representing a device link profile at a reference time at which the spot color is defined, and an updated profile, which is defined by the reference profile updated after the reference time;a first color converter configured to convert the image signal of the spot color plate into a first image signal of a process color plate, using the spot color information acquired by the spot color information acquirer; anda second color converter configured to convert the first image signal, which has been converted by the first color converter, into a second image signal of a process color plate, by having the reference profile and the updated profile, which are acquired by the profile acquirer, act successively thereon.2. The color conversion processing apparatus according to claim 1 , further comprising:a process color converter configured to convert the image signals of the process color plates into third image signals of process ...

PRINTER, NON-TRANSITORY RECORDING MEDIUM STORING SCANNER PROFILE CORRECTION PROGRAM, AND SCANNER PROFILE CORRECTION METHOD

Provided are a printer, a non-transitory recording medium and a scanner profile correction method. A hardware processor chooses at least one color for each of sheets where images of a job are separately to be printed, successively from colors of a chart for a scanner profile creation. The hardware processor defines an arrangement of at least one patch of the at least one color in a blank space of each of the sheets, and instructs a print engine to print the at least one patch together with an image of the job on each of the sheets. In response to obtaining measured color values of the at least one patch printed on each sheet from an in-line scanner and an in-line spectrocolorimeter, the hardware processor updates a part of data of a scanner profile, corresponding to the at least one color, by using the obtained measured color values. 1. A printer comprising:a print engine configured to print images of a job to be reproduced on respective sheets;an in-line scanner configured to measure a printed sheet to obtain a scanner value which is a color value taken by a measurement with the in-line scanner;an in-line spectrocolorimeter configured to measure a printed sheet to obtain a colorimeter value which is a color value taken by a measurement with the in-line spectrocolorimeter; and [ choosing at least one color for each of the sheets successively from colors of a chart to be used for creating a scanner profile in which scanner values and corresponding colorimeter values are associated with each other,', 'defining an arrangement of at least one patch of the at least one color in a blank space of each of the sheets, and', 'instructing the print engine to print the at least one patch together with an image of the job on each of the sheets; and, 'controlling a patch arrangement for each of sheets where images of a job are separately to be printed by the print engine, including'}, 'in response to obtaining a scanner value or values taken by a measurement of the at least one ...