СПОСОБ ПОДБОРА ЦВЕТОВ ПЕЧАТНЫХ КРАСОК

Изобретение относится к системам изготовления печатной краски. Техническим результатом является обеспечение наиболее близкого согласования цветов и качества независимого от географического места печатания материалов, достигаемое тем, что система содержит первый компьютер, который может обеспечиваться информацией со вторым компьютером, второй компьютер передает в первый компьютер информацию, которая включает в себя требуемый цвет краски и необязательно включает в себя информацию относительно других требуемых свойствах краски, причем первый компьютер содержит базу данных для предсказания цветовых данных рецептур красок при использовании выбранного набора основных цветов красок, программу для выбора рецептуры краски, основанной на данных для требуемой краски, и программу для передачи информации во второй компьютер для отображения цвета, относящегося к выбранной рецептуре краски, на цветном мониторе, подключенном ко второму компьютеру, а набор основных цветов краски можно выбрать, исходя из ...

СИСТЕМА ВЫБОРА ЦВЕТА

Изобретение относится к системе выбора цвета, предназначенной в помощь при выборе и сочетании цветов. Техническим результатом является обеспечение возможности выбора цвета при помощи контроллера без необходимости выбора пользователем основного цвета. Компьютерный способ помощи в выборе цвета содержит связывание, в зависимости от математического уравнения, которое выведено по измерениям психофизических реакций некоторого множества испытуемых субъектов на первое множество контрольных цветов, оценки цветовой эмоции с каждым из второго множества цветов, которые численно определены в библиотеке цветов; отображение на визуальном пользовательском интерфейсе сочетания, по крайней мере, трех цветов из библиотеки цветов; отображение на визуальном пользовательском интерфейсе объединенной оценки цветовой эмоции для указанного сочетания цветов; объединенная оценка цветовой эмоции рассчитывается при помощи контроллера следующим образом: (a) вычисление для каждой уникальной пары цветового сочетания смежных ...

ПОРТАТИВНОЕ УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ХРОМОФОРОВ В КОЖЕ И СПОСОБ ПРИМЕНЕНИЯ УСТРОЙСТВА

... 1. Портативное устройство для измерения хромофоров в коже, содержащее:источник света для излучения широкополосного света в кожу;детектор изображения для захвата колориметрического изображения кожи, полученного с помощью отраженного от кожи широкополосного света;непрозрачный блок защиты детектирования для окружения источника света и детектора изображения, причем этот непрозрачный блок защиты детектирования выполнен съемным и имеет соединительную часть, предназначенную для присоединения непрозрачного блока защиты детектирования к портативному устройству для измерения хромофоров в коже и отсоединения непрозрачного блока защиты детектирования от портативного устройства для измерения хромофоров в коже; иблок обработки, выполненный с возможностью обработки характеристик захваченного колориметрического изображения кожи для определения содержания хромофоров.2. Устройство по п. 1, в котором блок защиты детектирования имеет внутреннее покрытие, которое имеет поглощающие свойства.3. Устройство по ...

Erkennung einer Verunreinigung und/oder einer Eigenschaft zumindest eines Teils einer Textilie

Es wird insbesondere ein Verfahren durchgeführt von einer oder mehreren Vorrichtungen offenbart, das Verfahren umfassend: Erhalten einer Intensitätsinformation repräsentativ für ein von einer Verunreinigung einer Textilie und/oder für ein von zumindest einem Teil einer Textilie resultierendes Spektralbild; Ermitteln von mindestens einer von der Verunreinigung der Textilie und/oder von zumindest einer Eigenschaft der Textilie abhängigen Ausgangsgröße aus der Intensitätsinformation, wobei die Ausgangsgröße mittels eines adaptiven Auswertealgorithmus, insbesondere ein künstliches neuronales Netz, bestimmt wird, wobei Parameter des adaptiven Auswertealgorithmus anhand einer Vielzahl von Trainingsfällen kalibriert werden; Ausgeben oder Auslösen eines Ausgebens der mindestens einen Ausgangsgröße. Ferner wird eine Vorrichtung und ein System zum Durchführen des gegenständlichen Verfahrens offenbart.

Automatic inspection of textile webs

The invention relates to a method and a circuit arrangement for automatic inspection of plane fabric webs by means of a parallel arrangement of colour-area cameras. The inspection is based on colour-defect recognition carried out in real time, at the same time as local structural-defect recognition carried out in real time, and on 2-dimensional image evaluation initiated in the event of unreliable recognition results and no longer carried out in real time. Colour-defect recognition is based on a classification carried out by means of a colour-feature memory, and structural-defect recognition makes use of a cyclically written transient-image memory for the more accurate 2-dimensional grey-value evaluation in the event of defects recognised unreliably in the local region.

CHARAKTERISIERUNG VON FARBBILDAUFNAHMESYSTEMEN

Verfahren zum Bereitstellen von Daten im Zusammenhang mit der Mundhöhle

Verfahren und System zur Farbauswahl mittels semantische Farbnamen

Verfahren zur Umrechnung von Farbmesswerten in polarisierter oder unpolarisierter Form

Verfahren zur Umrechnung von polarisierten Farbmesswerten (FP(s2)) in unpolarisierte (FZ u(s2)) Farbmesswerte oder umgekehrt mit einem Rechner (160), wobei die Umrechnung anhand eines polarisiert und unpolarisiert ermittelten Referenzmesswertpaares (FP(s1), Fu(s1)) vom Rechner (160) vorgenommen wird, dadurch gekennzeichnet, dass in dem mit einer Farbmesseinrichtung (6, 21) verbundenen Rechner (160) wenigstens das zu einer Farbmessung bei einer ersten Schichtdicke (s1) gehörende Referenzmesswertpaar (FP(s1), Fu(s1)) aus einem polarisierten und einem unpolarisierten Messwert abgespeichert ist, dass mit der Farbmesseinrichtung (6, 21) eine unpolarisierte oder polarisierte Farbmessung (FP(s2), Fu(s2)) auf einem Bedruckstoff (20) bei einer zweiten Farbschichtdicke (s2) vorgenommen wird, dass zu dem dabei erfassten Farbmesswert (FP(s2)) mittels eines Farbmodells ein Farbwert der gleichen Art (FZ P(s1)) berechnet wird, welcher auf einer gemeinsamen Färbungslinie der gleichen Art liegt und zur ...

Ink set optimisation

A method of selecting optimal inks from a plurality of ink candidates for a given colour is disclosed. The method comprises a) obtaining a measure of spectral reflectance of a print substrate; b) obtaining a measure of the spectral reflectance of a first candidate ink of a first colour; c) predicting a colour gamut for the first candidate ink based on the spectral reflectance of the ink and the spectral reflectance of the substrate; d) repeating steps b) and c) for a second ink candidate of the first colour: e) selecting the ink candidate for which the predicted colour gamut includes the most target spot colours as the optimal ink for the first colour. The method may be employed to select optimal ink sets for an Expanded Colour Gamut (ECG) printing process. The substrate may be paper, a textile, a synthetic foil or a metal plate.

FRAKTAL SKR PROCEDURE FOR THE EVALUATION OF THE IMAGE QUALITY

OPTICAL SENSOR, OPTICAL COLLECTION PROCEDURE, PROGRAM AND RECORDING MEDIUM

VERFAHREN UND SYSTEM ZUR BESTIMMUNG DER KOORDINATEN VON FARBEN IN EINEM FARBRAUM

SYSTEM AND PROCEDURE FOR THE METAMERISMUS CONTROL

PROCEDURE FOR THE PRODUCTION OF DENTURE COLORS

PROCEDURE FOR THE COLOR ANALYSIS

PROCEDURE AND SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

WHEN MIXING COLORS APPLICABLE ONE INDICATION DEVICE.

Method and system for ascertaining a hue

The invention relates to a system and a method for ascertaining a color recipe, having the steps of: a) providing a database with a plurality of data sets, b) specifying a target application method, a target substrate, and a desired target hue by means of a user, c) searching the database using a computer program, and d) displaying stored information relating to the color recipe of at least one data set if found. The database for at least one hue comprises at least two different respective data sets, each of which comprises the same hue identification code but different substrates and/or application methods, and different color recipes, and the database for at least one color recipe comprises at least two different respective data sets, each of which comprises the same color recipe identification code but different substrates and/or application methods, and the resulting hue, wherein i) at least 90% of the data sets with different hues contain a respective different hue identification code ...

METHOD FOR THE PRODUCTION OF A DIGITAL COLOUR CATALOGUE

Method for matching printing ink colors

Interactive dental restorative network

COLOR NAMING, COLOR CATEGORIZATION AND DESCRIBING COLOR COMPOSITION OF IMAGES

Method for modifying an ink formulation and comparison of print colors

Systems and methods for statistical measurement control of spectrophotometric data

A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data (10) from a coated surface having a target coating theron; and determining (18), using the processor, whether the data includes any outlier data points (20). The method also includes removing (22), using the processor, at least one of the outlier data points to produce final spectral reflectance data (32); and calculating (34), using the processor, a characteristic of the target coating based at least in part on the final spectral reflectance data.

Systems and methods for statistical measurement control of spectrophotometric data

A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data (10) from a coated surface having a target coating theron; and determining (18), using the processor, whether the data includes any outlier data points (20). The method also includes removing (22), using the processor, at least one of the outlier data points to produce final spectral reflectance data (32); and calculating (34), using the processor, a characteristic of the target coating based at least in part on the final spectral reflectance data.

SYSTEM AND METHOD FOR ORGANIZING COLOR VALUES USING AN ARTIFICIAL INTELLIGENCE BASED CLUSTER MODEL

A system and method for organizing a plurality of sets color values into a plurality of color groups, such as paint, pigments, or dye formulations, is provided. The inputs to the system are the color values of a proposed paint, dye or colorant formulation and color measurement angles. The system includes an input device for entering a plurality of sets of color values and an artificial intelligence cluster model coupled to the input device. The cluster model produces an output signal indicative of the one color group to which a set of color values belongs. The artificial intelligence model may be embodied in a neural network. More specifically, the cluster model may be a self- organizing map neural network.

COLOR CLUSTERING TECHNIQUE FOR MATCHING REFINISH PAINTS

SELECTION DEVICE FOR AN ELASTIC VENOUS COMPRESSION STOCKING

Procédé de sélection d'une orthèse de contention veineuse élastique destinée à être enfilée sur un membre inférieur (M) d'un patient, ledit procédé comportant les étapes suivantes : 1) acquisition d'une photo (P) représentant la peau dudit membre et une carte de calibration (10) comportant une ou plusieurs zones de calibration (12), la carte de calibration étant posée sur ledit membre dans une position dite position d'acquisition ; 2) calibration de la photo (P) au moyen de la ou des zones de calibration (12), de manière que la représentation de ladite peau sur la photo présente une couleur calibrée, puis sélection, en fonction de la couleur calibrée, par ordinateur (22) et dans un ensemble de couleurs d'un nuancier, d'une couleur de nuancier, de préférence de la couleur de nuancier la plus proche de la couleur calibrée, dite couleur optimale , puis détermination, par ordinateur, d'une couleur d'orthèse en fonction de la couleur de nuancier sélectionnée ; 3) sélection d'une orthèse présentant ...

PROCESS FOR PRODUCING AN ELECTRONIC COLOR INFORMATION DATA FILE AND PROCESS FOR COLOR COMMUNICATION

A color information file is produced in a processor for the communication of colors, which file can include all possible information data assigned to one or several color samples and identifying, characterizing or supplementing them. The information data are stored as data objects in the data information file in an open and expandable hierarchically organized object structure on XML basis in text format. By embedding the data objects in an XML container, it is possible to characterize color samples by way of arbitrary and different combination of information data and to selectively add complementary image or text information. The color information file is produced with the help of a text editor or a composer software, for example with graphic user interface. A viewer software is provided for the reading of the color information file and for interpretation of the information data stored therein.

CHECK AND OTHER ITEM DESIGN FOR REFLECTANCE VALUES DETERMINATION PRIOR TO ITEM MANUFACTURE

A system for determining a plurality of reflectance values for an item design representing a physical item having at least one area of interest on a surface of the physical item for containing critical data and a background feature positioned on the surface, the physical item suitable for positioning in a digital image recorder, the system comprising: an input module configured for receiving one or more material reflectance values of a substrate for providing said surface and design parameters for said background feature, the design parameters including a color and a color density of said background feature; a memory configured for storing a plurality of color reflectance values assigned to a corresponding plurality of selected combinations of specified design parameters; a look-up module configured for determining from the memory one or more color reflectance values having the specified design parameters matching the design parameters for said background feature; a combination module configured ...

METHOD AND APPARATUS FOR REPRESENTING AN IMAGE WITH PLASMONIC PIXELS

A plasmonic pixel structure, comprising: a substrate; a plurality of nano-scale structures each comprising conducting and dielectric components, whereby the nano-scale structures are configured to act as nano-antennas. The nano-scale structures 5 have resonant frequencies that depend on the conducting component and sizes of the nano-scale structures. The conducting component and the sizes of the nano-scale structures are selected according to a wavelength component or components of incident light desired to be reflected or transmitted by the nano-scale structures, and the conducting component and the sizes of the nano-scale structures are selected 10 such that the nano-scale structures have respective resonant frequencies corresponding to a colour scheme.

WEB-BASED COLOR SELECTION SYSTEM

An apparatus includes a database having a plurality of digital color images and a neutral gray background value for each of the images; a processor configured to receive search criteria and to identify one or more of the digital color images meeting the search criteria; and a display configured to display at least one of the identified digital color images on a neutral gray background, wherein the brightness of the neutral gray background is determined by the neutral gray background value for the image being displayed. A method performed by the apparatus is also provided.

PROCESS FOR DISPLAYING AND DESIGNING COLORS

The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.

SYSTEMS AND METHODS FOR STATISTICAL MEASUREMENT CONTROL OF SPECTROPHOTOMETRIC DATA

A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data (10) from a coated surface having a target coating theron; and determining (18), using the processor, whether the data includes any outlier data points (20). The method also includes removing (22), using the processor, at least one of the outlier data points to produce final spectral reflectance data (32); and calculating (34), using the processor, a characteristic of the target coating based at least in part on the final spectral reflectance data.

METHOD FOR DETERMINING COLORIMETRIC VALUE

The colorimetric value at a specified temperature is determined by measuring thecolorimetric value of a colored material sample at an arbitrary temperature using a color meter such as a spectrophotometer, colorimeter, or densitometer, and by correcting the measured colorimetric value on the basis of the change in colorimetric value with temperature, which change in colorimetric value is computed from the difference in colorimetric values observed on a single colored material sample under at a minimum of two different temperatures. When a spectrophotometer is applied, the spectral reflectance or the spectral transmittance of the colored material sample is measured. On the other hand, spectral reflectance or spectral transmittance is measured in advance for a dye or pigment at a minimum of two different temperatures. The difference (.DELTA.K) of absorption coefficient (K), the difference (.DELTA.S) in the scattering coefficient (S), and the difference (.DELTA.D) in absorbance (D) at each ...

METHOD AND APPARATUS FOR REPRODUCING BLENDED COLORANTS ON ANELECTRONIC DISPLAY

An apparatus and method for reproducing the color of blended colorants on an electronic display such as a cathode ray tube, liquid crystal display or other type of electronic device that utilizes RGB values. Predictions of blended colorants on or in substrates can be made from XYZ measurements of samples prepared with no colorants, one colorant, and pairs of colorants. The calculation method uses light absorption, light scattering, and light absorption blend coefficients. An image digitizer can be used to obtain XYZ values from samples. Furthermore, image digitizer RGB values are converted into XYZ values with a non-linear model using a simple method. Furthermore, the above process to generate XYZ values from image digitizer RGB values can be used to generate RGB values from XYZ values for electronic display.

SYSTEM AND METHODS FOR ANALYZING TOOTH SHADES

A digital camera (12) connects to a tooth shade analyzer subsystem, e.g., a digital video processor (14), and a color display monitor for the electronic determination of the color of patient's teeth. Preliminarily, the camera captures (26) a series of digital color images of tooth shades corresponding to reference shade guides (34), and electronicall y compares the reference shades to an image of the patient's tooth. In a preferred embodiment the comparison is done over a set of pseudo - pixels, each corresponding to a group of pixels in an high-resolution camera. Once a match is found, it is communicated to a user of the system (52). In a specific embodiment the camera is equipped with a sleeve and illumination subsystems that help reduce the variations in the color of digital images due to external factors.

Rechengerät zur näherungsweisen Bestimmung der Differenz (Fs1/a-Fr1/a)

Verfahren zum Färben oder Bedrucken von nicht textilem Material in der Farbe einer gegebenen Vorlage

Verfahren zur Feststellung von Farbabweichungen von einer Standardfarbe und zur Einhaltung von vorgegebenen Toleranzen bei mehreren Färbemittel enthaltenden Mischungen

VERFAHREN UND VORRICHTUNG ZUM ERKENNEN VON FARBEN.

Verfahren zum Färben und Bedrucken von Textilmaterial in der Farbe einer gegebenen Vorlage

SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

PROCEDURE AND SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

Optische Charakterisierung eines Textilfasergebildes.

Das Verfahren dient zur automatischen optischen Charakterisierung eines Textilfasergebildes. Eine Vielzahl von Farbinformationen über verschiedene Stellen des Textilfasergebildes wird von einem optischen Sensorsystem erfasst. Die erfassten Farbinformationen werden in einem Farbraum (2) als Punktewolke (31) eingetragen. Eine Häufigkeitsdichteverteilung (4) der Punktewolke (31) wird bestimmt. Die Häufigkeitsdichteverteilung (4) wird numerisch spezifiziert. Die Erfindung ermöglicht die Feststellung einer Materialänderung des Textilfasergebildes und optimiert die Ausscheidung von Fremdmaterialien aus dem Textilfasergebilde.

Dental shade mapping

METHOD FOR DETERMINING THE REFLECTANCE OF AN OBJECT AND DEVICE THEREFOR

PROCESS ALLOWING TO COMMUNICATE CHROMATIC INFORMATION AND TO ESTABLISH a FORMULA OF DYES REPRODUCING a GIVEN DESIRED COLOR

METHOD FOR DETERMINING COLOR CHARACTERISTIC REFLECTION OF AN INTERFERENCE FILTER, METHOD OF DEPOSITING ONE SUCH INTERFERENCE FILTER AND ASSEMBLY OF AN INTERFERENCE FILTER AND OF AN OBJECT

Surface, e.g. concrete facing, characterizing method, for evaluating surface quality, involves establishing statistic functions corresponding to colorimetric components of standardized color chart with reference colorimetric components

La présente invention concerne un procédé d'évaluation objective et reproductible des propriétés colorimétriques d'une surface, telle qu'un parement en béton. Selon ce procédé, on utilise un nuancier préalablement étalonné sous un illuminant standard. On pose le nuancier sur la surface à caractériser et on réalise une image numérique brute de ladite surface, sous un éclairage donné. Puis, on établit les fonctions statistiques faisant correspondre les composantes colorimétriques du nuancier relevées sous l'éclairage donné, à celles obtenues sous éclairage standard. Ces fonctions statistiques sont alors appliquées aux composantes colorimétriques relevées sur le reste de l'image numérique brute. On obtient ainsi une image numérique corrigée de la surface à caractériser, indépendante de la luminosité au moment de la prise de vue, qui est alors traitée afin de caractériser les propriétés colorimétriques de la surface étudiée. Le nombre de pastilles teintées du nuancier utilisées est au moins ...

Hair e.g. natural hair, mesh's pitch measuring method for hair dressing salon, involves searching meshes in hair color chart, and calculating average value if pitch of mesh to be tested is equal to pitch of meshes

분광기를 이용하여 특수 설계된 패턴 폐루프 보정에 의한 고 정확도의 영상 색도계

... 본 명세서는 보다 정확한 출력을 포함할 수 있는 광대역 색도계를 제공하는 방법에 관한 다양한 실시예들을 설명한다. 일실시예에서, 분광계 또는 분광기 등의 협대역 장비는 광대역 색도계의 보정에 사용될 수 있고, 따라서 더 정확한 출력이 제공될 수 있다. 일실시예에서, 광대역 색도계 및 협대역 분광기로 구성된 광 테스트 장비는 보다 정확하게 보정된 광대역 색도계를 제공하는데 사용될 수 있다. 예로서, 광대역 색도계 및 협대역 분광기로 구성된 하이브리드 시스템인 스펙트럼 카메라는 광대역 색도계 및 협대역 분광기에 의한 동시 테스트에 사용될 수 있다. 통시 테스트에 의해 광대역 색도계의 정확한 보정이 달성될 수 있다. 본 명세서는 협대역 다중 채널 분광계를 갖는 광대역 세 채널 색도계를 특징화하는 수학적 모델을 더 기술한다.

SYSTEMS AND METHODS FOR MONITORING A PROCESS OUTPUT WITH A HIGHLY ABRIDGED SPECTROPHOTOMETER

A method for monitoring a process output with a highly abridged spectrophotometer. The method includes securing spectral data for each spectral primary used in a process, measuring spectral data with a highly abridged spectrophotometer for a sample produced by the process, determining an estimated weight for each spectral primary in the sample, and computing spectral data representative of the sample based on the secured spectral data and the determined estimated weight for each spectral primary in the sample.

MULTISPECTRAL SCANNER WITH ENLARGED RANGE, IN PARTICULAR A SINGLE-PASS FLAT SCANNER

Ce scanner comprend un capteur linéaire photosensible intégré (20) com­prenant N lignes parallèles de photosites, avec N ≥ 4, de préférence N ≥ 6, et pour chaque ligne de photosites un filtre optique passe-bande associé. Pour chaque pas de balayage et pour chaque pixel de la ligne analysée, il délivre N valeurs de mesure partielles quantifiées correspon­dantes, représentatives chacune de la réflectance spectrale du document recueillie au travers de l'un des N filtres respectifs. Des moyens de re­construction spectrale opèrent selon une méthode d'extrapolation avec apprentissage à partir d'échantillons colorés de référence, avec une mé­moire (42) stockant une base de connaissances formée à partir des va­leurs de réflectance spectrale connues desdits échantillons de référence, et un réseau de neurones (40) recevant en entrée les N valeurs partielles quantifiées et délivrant en sortie au moins une valeur quantifiée reconsti­tuée, représentative de la réflectance spectrale du pixel correspondant ...

COLOR CHARACTERIZATION OF PROJECTORS

The present invention transforms a device-dependent color value in a device-dependent color space of a display device to a device-independent color value in a device-independent color space. A first color value is determined in a perceptually linear color space by applying a matrix model to the device-dependent color value, the matrix model applying a tone curve correction and a tristimulus matrix to the device-dependent color value. A difference value is then determined in the perceptually linear color space, wherein the difference value is determined by applying a difference model to the device-dependent color value, and wherein the difference model models deviation of the matrix model from actual measurements of the display device. Next, the difference value and the first color value are added and the sum is transformed to the device-independent color space. Because the first value based on the matrix model is added to a difference value which accounts for deviation of the matrix model ...

MINIATURIZED SYSTEM AND METHOD FOR MEASURING OPTICAL CHARACTERISTICS

A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip (10) including one or more light sources and a plurality of light receivers (12) is provided. A first spectrometer system (6A) receives light from a first set of the plurality of light receivers. A second spectrometer system (6B) receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.

A COLOR MANAGEMENT SYSTEM

The present invention is directed to a method, apparatus, and system for color management by a retailer. The method, for example, includes comprising the steps of: choosing an engineered color standard (ECS); communicating the ECS to a product vendor; having a product produced using the ECS; and controlling the product's color quality by comparing the ECS to the produced product. The ECS preferably comprises reflectance data and a dye specification.

METHODS AND APPARATUS FOR CORRECTING SPECTRAL COLOR MEASUREMENTS

Methods and apparatus are disclosed for correcting spectral measurements, such as are obtained by a spectrophotometer for measuring color. A single matrix is used that operates on a raw measurement vector (spectrum) to obtain a corrected spectrum. The matrix may embody a transform that minimizes the difference between the corrected spectra and a set of reference spectra. The difference may be characterized by a set of basis function weighting vectors which are then used to build the correction matrix. Correction of high resolution spectra (very long measurement vectors) is thereby allowed, without the large number of measurements that would normally be required. The reference spectra can be calibration data, or measurements made by another instrument which is desired to be stimulated.

SYSTEM AND METHOD FOR TRANSFORMING COLOR MEASUREMENT DATA

Systems and methods for selectively manipulating and/or restandardizing color measurement or spectral data are provided. The color measurement or spectral data may be advantageously restandardized based on a selected color coordinate system using data transform(s) or delta profile(s). Users of the systems/methods are able to mix or employ color-measuring instrument types more easily and effectively by selectively causing a first instrument produced by a first color-measuring instrument manufacturer to provide color measurement data according to a color measurement standard of another color-measuring instrument manufacturer. Selective transformation of color measurement data gathered by the first manufacturer's color-measuring instrument is facilitated, so that the resultant color measurement data may be evaluated as though it was generated by the other manufacturer's color-measuring instrument.

Coloring inspection apparatus and coloring inspection method

An object is to ensure clear and easy quantification of the textures such as metallic texture and shiny texture of pearl pigment and to rationalize comparison inspection between an inspection object and a reference object. A coloring inspection apparatus 1 includes a camera 2 that is configured to have three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly and equivalently converted to a CIE XYZ color matching function, an arithmetic processing unit 3 that is configured to obtain and compute coloring data by conversion of an image which has three spectral sensitivities and is obtained by the camera 2 into tristimulus values X, Y and Z in a CIE XYZ color system, and lighting units 6 that are configured to illuminate an automobile 5 as an example of measuring object. The coloring inspection apparatus 1 computes a color distribution consistency index that represents a ratio of overlap of two xyz chromaticity histogram distributions of an inspection object Q and a reference object R, so ...

COATING COLOR DATABASE CREATING METHOD, SEARCH METHOD USING THE DATABASE, THEIR SYSTEM, PROGRAM, AND RECORDING MEDIUM

A method for creating a database for paint colors having a desired texture includes storing spectral reflectance data and micro-brilliance data of paint colors after associating each spectral reflectance data and each micro-brilliance data with a paint color code; storing texture evaluation values of sample paint colors after associating the each texture evaluation value with the paint color code; calculating characteristic quantities of the paint colors expressing textures using the spectral reflectance data and the micro-brilliance data, and storing the characteristic quantities after associating the each characteristic quantity with the paint color code; training a neural network using the characteristic quantities and the texture evaluation values of the sample paint colors as training data; and inputting characteristic quantities of the paint colors other than the sample paint colors into the neural network after the training, and storing output data after associating each output data ...

Color measurement device and image forming apparatus

The color measurement device and an image forming apparatus using the same includes a light source for irradiating a color measurement object with white light; a diffraction grating for dispersing the light reflected from the color measurement object; and a line sensor formed of multiple pixels that generate an electric signal corresponding to the intensity of the light dispersed by the diffraction grating, wherein the light source includes a light-emitting diode having a peak value of emission intensity in a wavelength zone of 380 nm to 420 nm, and a plural types of fluorescent members each having a peak value of fluorescence intensity in a wavelength zone of 420 nm to 730 nm.

Intelligent alignment system and method for color sensing devices

A computer-implemented intelligent alignment method for a color sensing device (12) which initially obtains a raw sense value measured by the color sensing device and converts the raw sense value to a tristimulus value (S401). The color sensing device may be calibrated using a known set of colors (S402). Raw readings received from the color sensing device may be mapped to known tristimulus values (S403), and mapped values may be converted to a standard reference illuminant color space (S404). A client-server system may be provided in which a color sensing device and one or more servers collectively execute operations according to the present disclosure.

Method for estimating the quality of wood chips

A method for estimating the quality of wood chips for use in a pulp and paper production process includes estimating a plurality of wood chip quality-related properties characterizing the wood chips, and associating with these properties a plurality of corresponding wood chip property-related quality indexes. A wood chip quality model combining the wood chip property-related quality indexes is used to generate a resulting chip quality index. The properties may include wood species composition, size distribution, impurities content, moisture content and freshness characterizing the wood chips.

METHOD AND DEVICE FOR DETERMINING THE COLOR HOMOGENEITY OF HAIR

A method and device for determining the color homogeneity of hair is provided. In accordance with various exemplary embodiments, a method comprises providing a digital image in which hair is depicted and which is parameterized in a color space which is defined by employing a parameter set in which one of the parameters is a hue, defining at least one hair analysis region in the digital image, determining a hue distribution in at least one hair analysis region, and determining at least one color homogeneity value on the basis of the determined hue distribution.

Method for representing true colors with device-dependent colors on surfaces and for producing paints and coatings matching the true colors

A method for selecting paints is disclosed. This method includes the steps of selecting true paint colors, displaying device-dependent colors corresponding to the true paint colors in a simulated full size room and interacting with the buyers to change the displayed colors and select the desired colors. The method also includes the step of dispensing paints corresponding to the selected colors. The displayed colors are generated by multiple color and/or white LEDs to provide a wider gamut of displayable colors and more color saturation and chromatic. A full-size apparatus for displaying paint colors using device-dependent colors is also disclosed.

METHOD AND DEVICE FOR MULTI-SPECTRAL IMAGING BY MEANS OF A DIGITAL RGB SENSOR

Method of measuring color difference of dyestuffs

A method for measuring the color difference between a sample dye (2) and a standard dye by testing the color properties of both dyes, comprises measuring the distribution curve of absorbance of individual components of the dye; determining the relationship between the color difference of dye solutions and the color difference of dyeings with respect to the standard dye and two or more representative samples (1) of the same family; and predicting the color difference between respective dyeings of sample and standard dyes from the color difference between respective solutions of the standard dye and the sample dye.

PHOTODETECTING DEVICE, PHOTODETECTING METHOD, PROGRAM AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide a photodetecting device, a photodetecting method, a program and a recording medium, which can accurately carry out a measurement. SOLUTION: The photodetecting device measures the characteristic of brightness of a specific color output by a displaying device under specified illuminating light. A light separating means 60f employed in the photodetecting device separates color components of the specific color from those of the illuminating light. Then, a converting section for displaying device 60g converts the separated color components of the specific color from the LMS into the XYZ by using an operator for displaying device Md. A converting section for illumination 60h converts the separated color components of the illuminating light from the LMS into the XYZ by using an operator for illumination Mi. Thus, the conversion from the RGB to the LMS is carried out by independently using respective operator for displaying device and operator for illumination, ...

ПОРТАТИВНОЕ УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ХРОМОФОРОВ В КОЖЕ И СПОСОБ ПРИМЕНЕНИЯ УСТРОЙСТВА

Изобретения относятся к устройствам и способам мониторинга или измерения состояния кожи путем обнаружения колебаний меланина и гемоглобина с помощью колориметрического анализа. Способ реализуют посредством портативного устройства для измерения содержания хромофоров в коже. При этом создают постоянные условия измерения с помощью непрозрачного блока защиты детектирования для окружения источника света и детектора изображения. Блок защиты детектирования выполнен съемным и имеет соединительную часть для присоединения к устройству и отсоединения от него, а также имеет допускающую изменение высоту, которая определяется собственным фокусным расстоянием детектора изображения. Обеспечивают излучение широкополосным источником белого света. Формируют рассеянное кожей излучение с помощью оптической системы. Детектируют сформированное излучение и создают колориметрические изображения с помощью детектора изображения. Определяют три цветовые координаты для каждого изображения с помощью блока обработки ...

Verfahren und Anordnung zum Ermitteln einer Farbzuordnung von Quellfarben und Zielfarben

Verfahren zum Ermitteln einer Farbzuordnung von Quellfarben und Zielfarben, bei dem mehrere voneinander verschiedene Quellfarben eines Quellfarbraumes ausgewählt werden, mindestens ein Ausgabebild mit einer Darstellung der ausgewählten Quellfarben mit Hilfe eines Druckers oder Kopierers ausgegeben wird, der Farbwert der ausgegebenen Darstellung jeder Quellfarbe als Zielfarbe in einem Zielfarbraum ermittelt wird, mit Hilfe der ausgewählten Quellfarben und dem zu jeder Quellfarbe ermittelten Farbwert der Zielfarbe eine globale Abbildungsfunktion für den Drucker oder Kopierer ermittelt wird, mit der jeder Quellfarbe des Quellfarbraumes eine Zielfarbe des Zielfarbraumes und/oder jeder Zielfarbe des Zielfarbraumes mindestens eine Quellfarbe des Quellfarbraumes zuordenbar ist, die globale Abbildungsfunktion die Auswahl eines Ausgabeparameters aus zwei möglichen, unterschiedlichen Trägermaterialien berücksichtigt, jeweils eine für den Drucker oder Kopierer spezifische Abbildungsfunktion für die ...

A COLOUR MIXTURE INDICATOR DEVICE

Verfahren zur Überprüfung der Druckresultate eines Druckers

Verfahren zur Überprüfung des Druckresultates eines Druckers, wobei eine spektralphotometrische Vermessung einer Kontrollfeldanordnung durchgeführt wird, wobei die Kontrollfeldanordnung (10) eine Mehrzahl von Graufeldern (A1, ..., A20) aufweist, und wobei eine Bewertung des Druckresultats des Druckers auf Basis eines Vergleichs des Ergebnisses dieser Vermessung mit Referenzwerten erfolgt, wobei das Verfahren folgende Schritte aufweist: a) Ausdrucken der Kontrollfeldanordnung (10) mittels des Druckers auf einem Druckmedium; b) spektralphotometrisches Vermessen von Graufeldern (A1, ..., A20) der Kontrollfeldanordnung (10); c) Berechnen von Referenzwerten (a*Referenz_dynamisch, b*Referenz_dynamisch) für die spektralphotometrisch vermessenen Graufelder, wobei dieses Berechnen unter Berücksichtigung der Eigenfärbung des Druckmediums erfolgt; d) Vergleichen von bei der spektralphotometrischen Vermessung der Graufelder (A1, ..., A20) erhaltenen Messwerten (a*Messung, b*Messung) mit den berechneten ...

Verfahren zum Identifizieren von eingehausten Verbrauchsstoffen

Die Erfindung beschreibt ein Verfahren zum Identifizieren von eingehausten Verbrauchsstoffen, die in einer eindeutig dem Verbrauchsstoff zugeordneten Verpackung untergebracht sind, mit den Schritten: Bereithalten einer eindeutigen Zuordnungsfunktion von Punkten eines Farbraumes zu jeweils einer Verpackung und damit zu dem darin eingehausten Verbrauchsstoff; Auswählen einer zu identifizierenden Verpackung; Definieren einer Messstelle auf der Verpackung und Ausleuchten der Messstelle; farbmetrisches Vermessen der Messstelle in einem mindestens zweidimensionalen Farbraum; Ermitteln eines Ortes in dem Farbraum auf Basis der erhaltenen Messwerte; Definieren einer Toleranz für den ermittelten Ort in einer ersten Dimension des Farbraumes; Definieren einer Toleranz für den ermittelten Ort in einer zweiten Dimension des Farbraumes; Zuordnen des ermittelten Ortes zu einem Verbrauchsstoff anhand der eindeutigen Zuordnungsfunktion.

VERFAHREN ZUR FARBERKENNUNG

Dyeing process

Dyeings and pigmentations, hereinafter termed colourations, are made conforming in colour closely to the colour of a given pattern which colour may alternatively be defined colorimetrically. The process is performed by preparing a number of colourations that roughly match the pattern, using for this purpose n colourants, n being a positive integer. Among the so-prepared colourations there must be at least n + 1 colourations whic which satisfy the condition that the determinant D is not zero where where Cij is the concentration of the j-th colourant in the i-th colouration. By optical measurement the colour differences between each colouration and the pattern are determined; alternatively at least n + 1 determinations are made of colourations which satisfy the above condition are so determined. From the measured colour differences the gradient of the colour difference in the concentration space at the centre of gravity of the concentration range under examination is ...

Skin colour matching method and system

A first method for matching skin colours comprises measuring a spectral reflectance curve of an area of skin and determining a blend of pigments to match the skin's colour by combining spectral reflectance curves measured for pigments to produce a calculated spectral reflectance curve corresponding to that of the skin. The pigment blend is then used, for example, to pigment a medical prosthesis, so that it matches precisely its wearer's skin. This method avoids the problem of metamerism in which colours that match under a first illumination (such as incandescent light) no longer match under a second illumination (such as daylight). A second method uses a database of pigment blends generated by the first method. The colour of an area of skin is measured and a pigment blend is selected from the database that provides a closest match. Apparatus for carrying out such colour matching is also provided, together with palettes of suitable pigments for skin colour matching.

Processing image data

Deriving matte control signal in a chroma-keying system

In a chroma-keying system a matte control/keying signal is derived by displaying selected image pixels at colour-related positions within a three-dimensional representation of colour-space. The pixels displayed in colour-space may correspond to the plain background of the foreground and may be used to define a volume in colour-space for chroma-keying the foreground image with a desired background image.

Colour detection and-or modification

This specification discloses a method and means for color detection and modification wherein the recognition of color is based on the definition of a three-dimensional color sub-space within a three-dimensional color universe. Chromaticity values are digitized and modeled as a function of brightness or luminance. Three eight-bit words (each having 256 values) are stored for each pixel of a digitized color picture. The first value is an approximation of luminance, while the second and third values represent variations of chromaticity or chrominance. Over sixteen million combinations of color values are available for each of over one million pixels in a 1024x1024 pixel array image. Pattern recognition techniques are used to determine if a given color value lies within the three-dimensional color sub-space. Additional means and method are disclosed to modify or manipulate the color defined by the color sub-space. A high-speed digital processing technique enables the real time modification ...

COLOR ANALYZERS

... 1, 247, 737. Photo-electric colour analysers. MINOLTA CAMERA K.K. Sept.30, 1968 (Oct.2, 1967; Oct. 11, 1967; Jan.17, 1968; June 26, 1968; July 29, 1968; Aug. 14, 1968; Aug.23, 1968], No.46281/68. Heading G1A. A colour analyzer comprises a plurality of detecting means sensitive generally to corresponding primary colours, but overlapping into adjacent primary colours and an electric matrix circuit solving the simultaneous linear equations necessary to determine the quantities of each primary colour from the detector signals. The primary colours may be C. I. E. chromaticity coefficients. In one embodiment, three photovoltaic or photo-conductive cells (silicon or CdS) are used each with a red, green or blue filter and in another embodiment a single detector is located behind a rotatable red, green and blue filter. Interchangeable patchboard resistor matrices may be provided to work with sources having different primary colours e. g. television tubes with different colour phosphors. Alternatively ...

A method for obtaining an approximate standard colour definition for a sample colour

Optical property measurement using a sensor behind a display screen

A device 204 for measuring optical properties such as colour or transparency of a target material 210 such as skin, includes a display screen 201 which is placed in contact with the target 210 and illuminates the target 210 with an illumination area 211. Reflected light 212 reflects off the target 210, transmits back through the display screen 201 and is detected by a light sensor 207 positioned behind the screen 201 and analysed. The illumination area may be a white or coloured pattern and the size, shape and position may be varied. A calibration function may be used to account for a non-zero transmission function of the display screen 201 and the sensitivity of the sensor 207. The display screen 201 may be an OLED screen. A diffuser and/or filter 203 may be positioned between the display screen 201 and sensor 207 to block unwanted light or reduce scattering inhomogeneity.

Colour management system and method

Colour isolation method

The method allows the isolation of a certain portion of an original color picture having a color which corresponds to a reference color in a photoelectrical picture reproducing process. The colors of the original picture as well as the reference color are identified by using a color plane which is divided up into incremental areas. Since the computation process is simplified, the color isolation process can be accomplished at the same time as the original picture is photoelectrically scanned.

3 D LATTICE-OPTICAL SENSOR WITH TINTED WINDSHIELD FOR COLORIMETRY WITH COLOR KONSTANZ ACHIEVEMENT

PROCEDURE FOR THE HAIR ANALYSIS AND FOR THE FORECAST OF THE ATTAINABLE HAIR COLOURING

SYSTEM AND PROCEDURE FOR THE ANALYSIS OF THE COLOURED NUANCES OF TEETH

PROCEDURE FOR RECOGNIZING COLORS

PROCEDURE FOR THE DETERMINATION OF PRE-SET VALUES FOR THE CONTROLLING OF A PRINTER

System and method for controlling metamerism

SYSTEM AND METHOD FOR TRANSFORMING COLOR MEASUREMENT DATA

A method for digital color grading of gems and communication thereof

Method for determining colorimetric value

Colour system

Color management and calibration using a scanner or camera

A computer-implemented method for color calibration and profiling of an output device includes measuring a color patch in a test pattern, which comprises a plurality of color patches, to obtain first image data; measuring the color patch in the test pattern to obtain second image data; transforming the first image data to a first estimated image data; determining a difference between the second image data and the first estimated image data to obtain a correction factor; and calculating, for each patch in the test pattern, a corrected image data by applying the correction factor to a subsequent estimated image data from the first sensor. The correction factor is used for correcting inaccuracies introduced when the first image data is transformed into the first estimated image data. The first image data and the second image data provide a measured color representation of the color patch in a device dependent color space and a device independent color space, respectively.

Dental shade mapping

A method and apparatus for obtaining a color mapping of a dental object. Illumination is directed toward the object over at least a first and second wavelength band, one band at a time. An image of the dental object is captured at each wavelength band to form a set of images of the dental object. For pixels in the captured set of images, an image data value for the pixel corresponds to each of the wavelength bands and calculates interpolated image data values proportional to the spectral reflectance of the dental object, according to the obtained image data values and according to image data values obtained from a reference object at the wavelength bands. Spectral distribution data for a viewing illuminant is obtained and the visual color of the dental object reconstructed according to the calculated interpolated image data values and the obtained spectral distribution of the viewing illuminant.

Apparatus and Methods for Selecting Light Emitters

Provided are devices and methods for grouping light emitters and devices including the same. Embodiments of such methods may include selecting a portion of the light emitters using a region of a multiple axis color space that is configured to represent each of a plurality of colors as at least two chromaticity coordinates. The region may be proximate a predefined point on the multiple axis color space and includes a major axis having a first length and a minor axis having a second length that is less than the first length.

Apparatus for the classification of observers according to their visual characteristics

Preferably, seven classes of observers are defined, according to different sets of Colour Matching Functions. By displaying specific colour patches of a classification chart using colour display devices having different sets of primaries, and by asking an actual observer to compare his perception of the same colour as displayed on each colour display device, the method allows assigning said observer his specific class. It is proposed a specific apparatus to implement this method.

Method for controlling an image display device to allow the same perception of colours over a large variety of observers

For each colour, the method comprises the following steps: —converting the first set of colour coordinates (R 0 , G 0 , B 0 ) R representing this colour into a first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) representing said colour as perceived by a first observer when displayed using a first set of primaries, —converting said first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) into a second set of visual tristimulus values (X i , Y i , Z i ) representing the same colour as perceived by a second observer, —converting said second set of visual tristimulus values (X i , Y i , Z i ) into a second set of colour coordinates (R i , G i , B i ) C representing said colour as perceived by said second observer when displayed using a second set of primaries.

IMAGE FORMING APPARATUS AND CONTROL METHOD OF IMAGE FORMING APPARATUS

An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to measure the measurement image formed on the sheet to output a measurement value, a white reference plate provided at a position facing to the measurement unit, and a correction unit configured to correct the measurement value output from the measurement unit according to a distance from the measurement unit to the white reference plate in a case where the measurement image formed on the sheet is measured. 1. An image forming apparatus comprising:an image forming unit configured to form a measurement image on a sheet;a measurement unit configured to measure the measurement image formed on the sheet to output a measurement value;a white reference plate provided at a position facing to the measurement unit; anda correction unit configured to correct the measurement value output from the measurement unit according to a distance from the measurement unit to the white reference plate in a case where the measurement image formed on the sheet is measured.2. The image forming apparatus according to claim 1 , wherein the measurement unit is configured to irradiate the measurement image with light and receive reflected light from the measurement image to output a spectral reflectance as the measurement value.3. The image forming apparatus according to claim 2 ,wherein the measurement unit is configured to measure light reflected from the white reference plate to output a first spectral reflectance, andwherein the correction unit is configured to correct the first spectral reflectance according to the distance from the measurement unit to the white reference plate to calculate a second spectral reflectance.4. The image forming apparatus according to claim 3 , wherein the correction unit is configured to correct the spectral reflectance output from the measurement unit based on the second spectral reflectance in a case where the ...

System for distributing and controlling color reproduction at multiple sites

The system provides for controlling color reproduction of input color image data in a network having nodes (or sites). The system distributes the input color image data from one of the nodes to other nodes, and provides data structures in the network. The system has means for providing color calibration data at each node characterizing output colors (colorants) of the rendering device of the node, and means for producing at each node, responsive to the color calibration data of the rendering device of the node, information for transforming the input color image data into output color image data at the rendering device of the node. The rendering device of each node renders a color reproduction responsive to the output color image data, wherein colors displayed in the reproduction at the rendering device of each node appear substantially the same within the output colors attainable by the rendering devices.

Image capturing device, color measuring device, color measuring system, image forming apparatus, and color measuring method

An image capturing device includes a sensor unit that captures a predetermined range including a subject; a reference chart that is captured by the sensor unit together with the subject; an illumination light source that illuminates the subject and the reference chart; a lens member including one or more lenses arranged in an optical path of reflected light extending from the subject and the reference chart to the sensor unit; and a lens moving unit that moves at least one lens of the lens member so as to change a position thereof in a direction along the optical path.

System and method for robust estimation of color dependent measurements

Methods, devices, and computer program products for robust estimation of color-dependent measurements are described herein. In one aspect, a method for generating a reference color grid that may be placed beside a color-dependent measuring device is disclosed. The reference color grid may contain a number of colors which enable a mapping from the color space of a testing device to a reference color space. This mapping may allow a function that is able to determine an estimate of a color-dependent measurement based on a color in the reference color space to be used. In another aspect, a method for robust estimation of color-dependent measurement using a reference color guide is disclosed.

Profile generating method, color conversion method, profile generating apparatus, color conversion apparatus, and non-transitory computer-readable recording medium with profile generating program recorded therein

First spectral data (spectral transmittance) of a printed object, and second spectral data (spectral reflectance) of the printed object are obtained. Further, third spectral data (spectral radiance distribution) of a transmissive light source, and fourth spectral data (spectral radiance distribution) of a reflective light source are obtained. Then, using the first, second, third and fourth spectral data, colorimetric value data of the printed object in a given observational environment is calculated.

Method and apparatus for ordering paint using a portable self-contained tool

A nonvolatile machine-readable memory medium in a mobile computing device includes instructions stored thereon as an application. The application is executed by a processor on the mobile computing device to order paint to cover a surface. The mobile computing device is communicatively coupled with a paint purchasing tool. The method includes retrieving a color value from a machine-readable memory residing within the paint purchasing tool. The processor retrieves a paint quantity from a machine-readable memory. The processor compiles an order for paint including the paint quantity and color value and transmits the order from the processor to a vendor for formulating the paint quantity having the color value when painted upon the surface and allowed to dry.

Selecting color spaces for cinema or video data

A computer-implemented method includes presenting one or more user interface controls configured to receive selection of a first color space, from a plurality of first color spaces corresponding to media encodings for recording cinema or video data, and a second color space, from a plurality of second color spaces corresponding to output devices, receiving the selection, combining a first transform corresponding to the first color space and a second transform corresponding to the second color space, in accordance with the selection, to form a combined transform, and providing the combined transform for use in previewing the cinema or video data in accordance with the output devices corresponding to the selection.

Emulating a spectral measurement device

Certain examples relate to emulating a spectral measurement device in a color measurement apparatus. In these examples, a primary spectral measurement device measures a first spectral characteristic of a rendered color output. A predictive model, parametrized by parameter values, is applied to the measurement from the primary spectral measurement device to determine a predicted measurement of a second spectral characteristic of the rendered color output which would be measured by an ancillary spectral measurement device. Parameter values are generated by training the predictive model with data from the primary spectral measurement device and the ancillary spectral measurement device.

HAIR COLORANT SYSTEM AND METHOD

A system and method for improving the outcome and consistency of hair coloring is provided. In an example method, an image of hair having a sample color may be received. A color space characteristic associated with the hair sample may be determined. An indication of a target color may be received. A colorant formulation may be identified for changing the hair from the sample color to the target color. 1. A computer-implemented method comprising:receiving, on a computing device, an image of hair having a sample color;determining, on the computing device, a color space characteristic associated with the hair sample;receiving, on the computing device, an indication of a target color; andidentifying, on the computing device, a colorant formulation for changing the hair from the sample color to the target color.2. The computer-implemented method of claim 1 , wherein the image includes one or more calibration features.3. The computer-implemented method of claim 2 , wherein the one or more calibration features include control color patches.4. The computer-implemented method of claim 1 , wherein the color space is a CIELAB color space claim 1 , and the characteristic includes at least a lightness characteristic.5. The computer-implemented method of claim 1 , wherein receiving the indication of the target color includes receiving a selection from a library of colors associated with a colorant line.6. The computer-implemented method of claim 1 , wherein receiving the indication of the target color includes receiving an image including the target color.7. The computer-implemented method of claim 1 , further comprising calculating a color space characteristic difference between the sample color and the target color; andwherein identifying the colorant formulation is based on, at least in part, the color space characteristic difference between the sample color and the target color.8. The computer-implemented method of claim 1 , further comprising receiving hair health data ...

Unevenness inspection apparatus and unevenness inspection method

An unevenness inspection apparatus including: an image pickup section obtaining a pickup image of a test object; an image generating section generating each of a color unevenness inspection image and a luminance unevenness inspection image based on the pickup image; a calculating section calculating an evaluation parameter using both of the color unevenness inspection image and the luminance unevenness inspection image; and an inspecting section performing unevenness inspection using the calculated evaluation parameter. The calculating section calculates the evaluation parameter in consideration of unevenness visibility for both color and luminance.

System for distributing and controlling color reproduction at multiple sites

In the color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may represent a color display in which a member surrounds the outer periphery of the screen of the display and a color measuring instrument is coupled to the first member. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the sample to a spectrograph. The color measuring instruments provide for non-contact measurements of color samples either displayed on a color display, or printed on a sheet, and are self-calibrating by the use of calibration references in the instrument.

SYSTEM AND METHOD FOR CALIBRATING A LINEAR ARRAY

A method of balancing responses of a plurality of sensor chips arranged generally in a linear array comprising: exposing the plurality of sensor chips to an absence of illumination; measuring a dark response of each photosensor of a plurality of photosensors; positioning a calibration piece within a field of view of the plurality of sensor chips other than a calibration sensor chip; illuminating a calibration standard and the calibration piece with a light source; measuring a light response of each photosensor of the plurality of photosensors; applying an offset to the light response of each photosensor of the plurality of photosensors by subtracting the dark response of each photosensor of the plurality of photosensors to obtain an offset light response for each photosensor of the plurality of photosensors; calculating a mean offset light response for each sensor chip of the plurality of sensor chips by averaging the offset light response for each photosensor of the plurality of photosensors in each sensor chip of the plurality of sensor chips; calculating a modified light response for each photosensor of the plurality of photosensors by modifying the offset light response for each photosensor of the plurality of photosensors based on the mean offset light response of the sensor chip comprising the respective photosensor, the mean offset light response of the calibration sensor chip, an initial mean offset light response of the sensor chip comprising the respective photosensor, and an initial mean offset light response of the calibration sensor chip; and, applying a first gain to the offset light response of each photosensor of the plurality of photosensors based on the modified light response of each respective photosensor to obtain a corrected light response of each photosensor of the plurality of photosensors. 1. A method of balancing responses of a plurality of sensor chips arranged generally in a linear array , wherein each sensor chip of the plurality of ...

SYSTEM AND METHOD OF ESTIMATING SPECTRAL CONTRIBUTIONS IN AMBIENT LIGHT AND CORRECTING FIELD OF VIEW ERRORS

The present disclosure describes systems, methods, and devices for estimating spectral contributions in ambient light. The present disclosure also describes systems, methods, and devices for compensating for field of view errors resulting from the user, contextual structures (e.g., buildings, trees, fixtures, or geological formations), atmospheric effects (e.g., ozone coverage, smog, fog, haze, or clouds), device structures, and/or device orientation/tilt relative to a light source being measured (e.g., sun, indoor/outdoor light emitter, or an at least partially reflective surface). The present disclosure also describes systems, methods, and devices for estimating spectral contributions in light or color measurements and accounting for field of view errors to obtain a refined estimate. 1. A method of estimating spectral contributions in ambient light , comprising:receiving a light measurement of a mobile device, the light measurement having a spectral response;receiving a location and a time associated with the light measurement of the mobile device;providing a spectral correction factor appropriate to the location and the time associated with the light measurement of the mobile device;scaling the light measurement of the mobile device by the spectral correction factor to obtain a target measure;detecting light within two or more differing fields of view; andscaling the light measurement of the mobile device with a correction factor based upon the detected light within the two or more differing fields of view.2. The method of claim 1 , wherein the spectral correction factor is based upon a target spectrum relative to the spectral response of the light measurement of the mobile device according to a light model appropriate to the location and the time associated with the light measurement of the mobile device.3. The method of claim 2 , wherein the target spectrum comprises at least one of: an UV index claim 2 , a visible color spectrum claim 2 , human erythema action ...

Method for constructing meshed model and discrete chromatography of eight-element primary color HSB full color gamut color space

A method for constructing a meshed model and a discrete chromatography of eight primary color HSB color space is provided. By a meshed digital model and a discrete algorithm of color space, the color value and the color distribution in any point, line, surface and space area in the HSB color space can be quickly obtained based on color values of eight primary colors and coordinate values of mesh points in the HSB color space, thereby (i) realizing the full color gamut discrete chromatography of the HSB color space, (ii) realizing the visualization of the full color gamut of the color space, and (iii) improving the work efficiency of color matching. 2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. The method of claim 1 , wherein claim 1 , the tristimulus values of the eight primary colors respectively corresponding to each vertex on the 12-surface cone are as follows:{'sup': rd', 'th', 'th', 'th', 'th', 'th', 'st', 'nd, 'the 3vertex (255, 0, 0), the 4vertex (255, 255, 0), the 5vertex (0, 255, 0), the 6vertex (0, 255, 255), the 7vertex (0, 0, 255), the 8vertex (255, 0, 255), the 1vertex (255, 255, 255), the 2vertex (0, 0, 0);'}based on n=10, acquisition of discrete colors of eight primary color HSB color space is realized. This application is the continuation application of International Application No. PCT/CN2019/115237, filed on Nov. 4, 2019, which is based upon and claims priority to Chinese Patent Application No. 201910747480.0, filed on Aug. 14, 2019, the entire contents of which are incorporated herein by reference.The present disclosure relates to a method for constructing a meshed model and a discrete chromatography of eight primary color HSB color space, and belongs to the technical field of color control for dyeing materials, coatings and inks in the textile and printing industries.The HSB (Hue, Saturation and Brightness) color space is a color scheme developed according to human vision, and is a three-dimensional space composition formed by ...

DIGITAL PATHOLOGY COLOR CALIBRATION AND VALIDATION

Color calibration for digital pathology is provided. A standard glass slide is prepared with a specimen having zero or more stains. The specimen is scanned a first time using a hyperspectral imaging system to produce a first digital image having XYZ color values. The specimen is scanned a second time using a digital pathology imaging system to produce a second digital image having RGB color values. The first and second digital images are then registered against each other to align the digital image data. Individual pixels of the first and second images may be combined in the registration process so that the first and second digital images have substantially similar pixel sizes. A lookup table is generated to associate XYZ color values to RGB color values. Once the lookup table has been generated, it can be used to present RGB color on a display using the corresponding XYZ color. 1. A method comprising:obtaining a first digital image of a specimen in XYZ color captured by a first imaging system, wherein the first digital image comprises a plurality of XYZ pixels, and wherein each of the plurality of XYZ pixels has an XYZ color value;obtaining a second digital image of the specimen in RGB color captured by a second imaging system, wherein the second digital image comprises a plurality of RGB pixels, and wherein each of the plurality of RGB pixels has an RGB color value; andgenerating a lookup table to associate each of a plurality of XYZ color values derived from the first digital image with one of a plurality of RGB color values derived from the second digital image.2. The method of claim 1 , wherein generating the lookup table comprises:registering the first digital image and the second digital image to a common grid; andmapping the plurality of XYZ pixels to the plurality of RGB pixels according to the common grid.3. The method of claim 1 , wherein generating the lookup table comprises:aligning the first digital image with the second digital image based on pattern ...

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. 1. A system for determining a true color of an unknown color sample , the system comprising:a template including a cut-out and a plurality of concentric rings around the cut-out, each of the concentric rings having offset gray scales modulated as a function of an angle of a polar coordinate, wherein there is a trigonometric relationship between the gray scales of the plurality of concentric rings;a RGB color module configured to determine, in an image of the template over the unknown color sample, a first radial cross-section of one of the concentric rings having an intensity that matches a determined average red color value of the image of the unknown color sample and to determine a true average red color value of the unknown color sample based on an intensity profile of the one of the concentric rings and a polar angle of the first radial cross-section; andan angular module configured to determine the polar angle of the first radial cross-section.2. The system of claim 1 , wherein the angular module is configured to determine the polar angle of the first radial cross-section by comparing the intensity in the image of the first radial cross-section with an intensity in the image of a radial cross-section of another of the concentric rings along the same radial segment and utilizing the trigonometric relationship between the gray scales of the concentric rings.3. The system of claim 1 , wherein the RGB color module is further configured to determine claim 1 , in the image of the template over the unknown color sample claim 1 , a second radial cross-section of a second one of ...

Image forming apparatus

An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to emit light to the measurement image, and measure light reflected from the measurement image, a selection unit configured to select one of a first mode for feeding a sheet, forming a measurement image on the sheet with the image forming unit, and measuring the measurement image on the sheet with the measurement unit, and a second mode for feeding a chart on which a measurement image has already been formed, and measuring the measurement image on the chart with the measurement unit without performing image formation with the image forming unit, and a control unit configured to control the measurement unit to perform measurement of the measurement image according to the mode selected by the selection unit.

IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

An image processing device includes 1. An image processing device comprising: a color reproduction characteristic acquiring unit that acquires a color reproduction characteristic of a display device;', 'a color reproduction characteristic correction unit that corrects the color reproduction characteristic;', 'a feature amount extraction unit that extracts a feature amount which is an object of the correction of the color reproduction characteristic acquired by the color reproduction characteristic acquiring unit; and', 'an evaluation image selecting unit that selects, based on the feature amount, an evaluation image which is a source for generating a confirmation image including (i) an image when the color reproduction characteristic acquired by the color reproduction characteristic acquiring unit and before the correction is used and (ii) an image when the color reproduction characteristic after the correction by the color reproduction characteristic correction unit is used., 'a processor configured to execute2. The image processing device according to claim 1 , further comprising:a confirmation image generating unit that changes, according to the feature amount, (i) the image when the color reproduction characteristic before the correction is used and (ii) the image when the color reproduction characteristic after the correction is used, to generate the confirmation image.3. The image processing device according to claim 2 , wherein the confirmation image generating unit generates an image representing tone characteristics claim 2 , as the confirmation image.4. The image processing device according to claim 2 , wherein the confirmation image generating unit makes (i) a background of the image when the color reproduction characteristic before the correction is used and (ii) a background of the image when the color reproduction characteristic after the correction is used claim 2 , in black.5. The image processing device according to claim 3 , wherein the ...

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.

PRINTING USING A SPECTROPHOTOMETER

Examples herein provide a method. The method includes printing first color patches at a first location on a first side of a print medium. The method includes generating an international color consortium (“ICC”) profile of the first side by characterizing the first color patches using a spectrophotometer. The method includes printing, using the ICC profile of the first side, second color patches at a second location on the first side of the print medium. The method includes printing third color patches on a second side of the print medium, the third patches being a registered mirrored copy of the second patches. The method includes generating an ICC profile of the second side by characterizing the registered second and third patches using the spectrophotometer. 1. A method , comprising:printing first color patches at a first location on a first side of a print medium;generating an international color consortium (“ICC”) profile of the first side by characterizing the first color patches using a spectrophotometer;printing, using the ICC profile of the first side, second color patches at a second location on the first side of the print medium;printing third color patches on a second side of the print medium, the third patches being a registered mirrored copy of the second patches; andgenerating an ICC profile of the second side by characterizing the registered second and third patches using the spectrophotometer.2. The method of claim 1 , further comprising:printing an image on a third location on the first side of print medium using the ICC profile of the first side; andprinting a registered mirrored copy of the image on the second side of the print medium using the ICC profile of the second side.3. The method of claim 1 , further comprising printing at least one fiducial mark on the first side of the print medium so that the third color patches are registered with the first color patches using respective relative positions of the third and first patches to a location ...

MAPPING BETWEEN COLOR SPACES

Certain examples described herein relate to mapping between an input color space and an output color space. In some cases, data representing a set of candidate output color values in the output color space is obtained for a transition region between two input color values in the input color space. A sub-region of the transition region is defined, the sub-region being associated with a target colorimetry and a target value of a metric. An output color value is selected from the set of candidate output color values. The output value has an associated value of the metric and an associated colorimetry. The selecting is based on the associated colorimetry and the target colorimetry, and the value of the metric and the target value of the metric. In some cases, mapping data is generated by assigning the selected output color value to the sub-region. 1. A method comprising:obtaining, for a transition region between two input color values in an input color space, data representing a set of candidate output color values in an output color space;defining a sub-region of the transition region, the sub-region being associated with a target colorimetry and a target value of a metric; the associated colorimetry and the target colorimetry; and', 'the value of the metric and the target value of the metric; and, 'selecting, from the set of candidate output color values, a given output color value having an associated value of the metric and an associated colorimetry, the selecting being based ongenerating mapping data by assigning the selected given output color value to the sub-region, the mapping data being arranged to map the input color space to the output color space.2. The method of claim 1 , wherein the selected output color value comprises a Neugebauer Primary Area Coverage (NPac) vector defining a statistical distribution of Neugebauer Primaries (NPs) over an area of a halftone.3. The method of claim 1 , the method comprising storing the mapping data in a color lookup table ...

Color conversion processing apparatus, color conversion processing method and storage medium

A color conversion processing apparatus that converts a signal value of an input image into an output value of an actual color material used in an image forming apparatus, and includes: an acquisition unit configured to acquire a printing setting for the input image; and a conversion unit configured to convert the signal value of the input image into the output value of the actual color material in accordance with the acquired printing setting, and the conversion unit performs the conversion while maintaining a relationship between the signal value of the input image and output values of a virtual color material, the number of virtual color materials is smaller than the number of actual color materials and the respective virtual color materials have respective densities corresponding to respective wavelength bands obtained by dividing a wavelength range reproduced by the actual color materials being output into a plurality of wavelength bands, the output values of the plurality of virtual color materials are determined based on the respective densities corresponding to the respective wavelength bands, and the relationship is a relationship that increases monotonically and whose secondary differential does not become negative.

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.

Management Method of Color Data of Chromatic Image

The invention discloses a method of managing color data based on color data in an HSaIn format in an HSaIn color space, comprising: acquiring color data in an XYZ format at an input device side; converting the acquired color data in the XYZ format at the input device side into color data in an HSaIn format. The method can further comprise mapping the color data in the HSaIn format at the input device side to obtain color data in an HSaIn format at an output device side; converting the color data in the HSaIn format at the output device side into color data in an XYZ format; converting the color data in the XYZ format at the output device side into one in a format of the color data of the output device. Since a conversion of chromatic color data independent of the device into chromatic color data dependent on the output device is achieved in this method, the output chromatic image is not influenced by color characteristics of the output device; and the analytical matrix operation adopted in the managing process is easily achieved, so the calculating process for the conversion is simple, the conversion accuracy and efficiency are improved, and the conversion speed is accelerated

Color Measuring Device And Color Measuring Method

A color measuring device and a color measuring method according to the present invention includes an imaging unit, a first image of a color chart and a second image accompanied with the color chart are obtained by the imaging unit, the second image being a predetermined code indicating control information about the color measuring device, the control information is obtained based on the obtained second image, and operation of the color measuring device is controlled based on the obtained control information. 1. A color measuring device comprising:a colorimetry unit that measures color;an imaging unit that takes an image;a movement unit that relatively moves a position of the colorimetry unit with respect to a sheet of a measurement object;an image obtainment processor that obtains a first image of a color chart and a second image accompanied with the color chart using the imaging unit, the color chart including a plurality of patches each of which is a region of a predetermined color, the second image being a predetermined code indicating control information about the color measuring device; anda controller that controls operation of the color measuring device by controlling the colorimetry unit, the imaging unit, and the movement unit,wherein the controller obtains the control information, based on the second image obtained by the image obtainment processor, and controls the operation of the color measuring device, based on the obtained control information.2. The color measuring device according to claim 1 , wherein the control information includes color measurement control information about the control related to the colorimetry unit.3. The color measuring device according to claim 1 , wherein the control information includes chart definition information including at least patch position definition information indicating a position of each of the plurality of patches in the color chart.4. The color measuring device according to claim 1 , further comprisinga sheet ...

METHOD FOR ASCERTAINING TEXTURE PARAMETERS OF A PAINT

Described herein is a method for predicting visual texture parameters of a paint having a known paint formulation. The visual texture parameters of the paint are determined using an artificial neural network on the basis of a number of color components used in the known paint formulation. The method includes determining a value of at least one characteristic variable describing at least one optical property using a physical model for the known paint formulation. The method also includes assigning the value to the known paint formulation, and transmitting the value to the artificial neural network as an input signal for determining the visual texture parameters. The value describes the at least one optical property for at least some of the number of color components of the known paint formulation. The method further includes training the neural network using a plurality of color originals each having a respective known paint formulation. 1. A method for predicting visual texture parameters of a paint having a known paint formulation , wherein the visual texture parameters of the paint are determined using an artificial neural network on the basis of a number of color components used in the known paint formulation , the method comprising:determining a value of at least one characteristic variable describing at least one optical property using a physical model for the known paint formulation;assigning the value to the known paint formulationtransmitting the value to the artificial neural network as an input signal for determining the visual texture parameters, wherein the value determined and assigned to the known paint formulation describes the at least one optical property for at least some of the number of color components of the known paint formulation; andtraining the neural network using a plurality of color originals each having a respective known paint formulation, wherein for each of the plurality of color originals, a respective visual texture parameter is ...

Base colorant fluids and auxiliary colorant fluids

In one implementation, an example print apparatus includes a fluid ejection system operated by control instructions generated from a print engine and a compensation engine. The compensation engine determines an amount of the auxiliary colorant fluid to produce a combination of the base colorant fluid and the auxiliary colorant fluid based on input color image data, a reflective quality of a substrate to be printed on, and an opacity grade of the base colorant fluid. The print engine generates control instructions to instruct the fluid ejection system to print the combination of the base colorant fluid and the auxiliary colorant fluid on the substrate.

Re-calibrating color measurement instruments based on user-made color selections

In one example, an initial transform is stored for converting wavelength channel responses of a color measurement instrument to color readings. The initial transform is set in-factory by a manufacturer of the color measurement device. A color selection of a sample is subsequently retrieved from a database, where the color selection was made by an end user in response to a color reading by the color measurement instrument using the initial transform. An adjustment to the initial transform is calculated using the color selection. The adjustment is then sent to the color measurement instrument for use in making future color measurements.

Lighting device comprising measuring device and method for operating the lighting device

Various embodiments may relate to a lighting device including at least two light sources, the light from which has different spectra and is combined to form useful light. For measuring the portions of the light from the individual light sources, part of the useful light, the measurement light, is branched off with the aid of a coupling-out element at the output of the lighting device and is fed to a measuring device. 1. A lighting device , comprising:at least one first light source and one second light source, wherein the first light source is designed to emit light having a first spectrum, and wherein the second light source is designed to emit light having a second spectrum, an optical device for combining the light having the first spectrum with the light having the second spectrum onto a common useful light path to form useful light,an optical coupling-out element, which is arranged in the common useful light path and is designed for coupling out part of the useful light from the common useful light path onto a measurement light path for use as measurement light, anda measuring device, which is arranged in the measurement light path and is designed for measuring the measurement light.2. The lighting device as claimed in claim 1 , wherein the measuring device is designed for measuring light having the first spectrum and light having the second spectrum and comprises at least one measuring element.3. The lighting device as claimed in claim 2 , wherein the measuring device comprises an optical mixing chamber for the measurement light claim 2 , the at least one measuring element being arranged in said chamber.4. The lighting device as claimed in claim 3 , wherein the inner surface of the optical mixing chamber is configured in a diffusely reflective fashion in the manner of an Ulbricht sphere.5. The lighting device as claimed in claim 1 , wherein the coupling-out element comprises a glass plate or a mirror and reflects the measurement light portion from the useful ...

Method and device for providing ingredient data for a prosthesis

A method is provided for providing a set of ingredients for manufacturing of a dental prosthesis covering. The method comprises receiving a background colour value providing information on a colour of a background substrate on which the prosthesis is to be provided, receiving an appearance colour value providing information on an appearance colour of the prosthesis and receiving a thickness value providing information on a thickness of the dental prosthesis covering. In an electronic memory, a first ingredient record is looked up comprising first ingredient value, based on the measured background value and the measured appearance colour value. The first ingredient values are adjusted in an electronic processor adjusted based on the thickness value and through electronic output means, the adjusted ingredient data is provided. By adjusting ingredients for thickness, a more natural appearance may be achieved.

MATCHING TWO COLOR MEASUREMENT DEVICES USING ARTIFICIAL NEURAL NETWORK

In one or more implementations, the apparatus, systems and methods disclosed herein are directed to configuring a color measurement device to output color measurements that match the expected output of a different color measurement device. In a particular implementation, a method is provided for matching the color measurements made by a color measurement device to the color measurements made by a target color measurement device by implementing a single step color calibration and conversion process using an Artificial Neural Network (ANN). By way of non-limiting example, the raw counts from the color measurement device is converted to a specific color space, such as L*a*b, directly through an ANN. Such ANN is trained to ensure the output of the color measurement from the color measurement device will match with the output of the color measurement from a target color measurement device.

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 ...

METHOD FOR DETERMINING THE COLOR OF A COSMETIC PRODUCT ADAPTED FOR A WEARER'S SKIN

The invention relates to a method for determining the color of a cosmetic product adapted to the skin of a wearer of the cosmetic product, the method including the following steps:—supply data related to the color of the wearer's skin,—determine the color of the cosmetic product by using a correspondence function applied to data about the color appearance of the wearer's skin, the correspondence function associating a cosmetic product color with a wearer's skin color appearance, the correspondence function having at least three reference associations, a reference association associating a predetermined cosmetic product color with a predetermined wearer skin color within a tolerance, the tolerance being equal to a distance of 2 in the L*a*b* color space. 1. A method of determining the color of a cosmetic product adapted to the skin of a wearer of the cosmetic product , the method including the following steps:supply data related to the color appearance of the wearer's skin, ["a first association associating the color of the cosmetic product with coordinates in the CIE L*a*b* color space equal to (26.9; 10.7; 13.6) with a wearer's skin color with coordinates in the CIE L*a*b* color space equal to (27.0; 12.4; 11.6),", "a second association associating the color of the cosmetic product with coordinates in the CIE L*a*b* color space equal to (37.6; 10.8; 15.1) with a wearer's skin color with coordinates in the CIE L*a*b* color space equal to (37.6; 11.0; 14.2),", "a third association associating the color of the cosmetic product with coordinates in the CIE L*a*b* color space equal to (50.2; 15.4; 22.9) with a wearer's skin color with coordinates in the CIE L*a*b* color space equal to (50.2; 13.2; 25.1),", "a fourth association associating the color of the cosmetic product with coordinates in the CIE L*a*b* color space equal to (51.2; 13.5; 22.1) with a wearer's skin color with coordinates in the CIE L*a*b* color space equal to (51.2; 11.3; 23.6),", "a fifth association ...

DEVICE AND METHOD FOR SPECTRAL IMAGING

A spectral imaging device includes an imager, a scanning stage to establish relative motion between the imager and a sample in a scanning direction and an optical system controlling a light characteristic of a light beam constituting an image of the sample to the imager. The optical system includes a light varying element to receive the light beam and provide an output light beam with spatially varying light characteristic over a cross-section thereof. A set of redirecting optical elements direct light rays from the sample to form the light beam, and to focus the output light beam onto the imager. A controller controls the scanning stage and the imager to capture a plurality of image frames with an overlap including a defined shift that is greater than 1 pixel along the scanning direction between consecutive image frames. A computing device consolidates image data to provide an image of the sample. 1. A spectral imaging device comprising:an imager configured to capture image frames;a scanning stage configured to establish relative motion between the imager and a sample in a scanning direction; andan optical system configured to control a light characteristic of a light beam constituting an image of the sample to the imager, the optical system comprising:a light varying element configured to receive the light beam and provide an output light beam having a spatially varying light characteristic over a cross-section thereof; anda set of redirecting optical elements configured to direct light rays from the sample to form the light beam, and to focus the output light beam onto the imager; anda controller configured to control the scanning stage and the imager to capture a plurality of image frames with movement of the scanning stage in a scanning direction, wherein the plurality of image frames is captured with an overlap including a defined shift that is greater than 1 pixel along the scanning direction between consecutive image frames in the plurality of image frames.2 ...

METHOD FOR DETERMINING COLOR CHARACTERISTICS REFLECTED BY AN INTERFERENCE FILTER, METHOD FOR DEPOSITING SUCH AN INTERFERENCE FILTER, AND ASSEMBLY FORMED BY AN INTERFERENCE FILTER AND AN OBJECT

A method for determining color characteristics reflected by an interference filter, a method for depositing such an interference filter, and an assembly of an interference filter and an object, the method including: determining color coordinates of an object; and determining at least one color characteristic reflected by the interference filter according to the determined color coordinates, respecting an isoperception law. 116-. (canceled)17. A method for determining colorimetric characteristics in reflection of an interference filter , the method comprising:determining colorimetric coordinates of an object;determining at least one colorimetric characteristic in reflection of the interference filter depending on the determined colorimetric coordinates while respecting an iso-perception law.18. The method as claimed in claim 17 , wherein the colorimetric characteristic in reflection is determined depending on a reflectance desired for the interference filter.19. The method as claimed in claim 18 , wherein the calorimetric coordinates of the object include a lightness level of the object and a color saturation value of the object and wherein the determining at least one colorimetric characteristic in reflection of the interference filter comprises:converting the lightness level of the object into an equivalent reflectance;determining a color-in-reflection saturation value of the interference filter depending on the reflectance desired for the interference filter, on the equivalent reflectance and on the color saturation value of the object while respecting an iso-perception law.20. The method as claimed in claim 19 , wherein the equivalent reflectance and the desired reflectance are visual reflectances.21. The method as claimed in claim 20 , wherein the determining the color-in-reflection saturation value of the interference filter is such that a ratio of the color-in-reflection saturation value of the interference filter to the desired reflectance is equal to a ratio ...

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

Device-independent coordinate values at an adjustment point are converted into second coordinate values in accordance with a B 2 A table of an output profile, and the second coordinate values are converted into adjustment target PCS values, which are the device-independent coordinate values, in accordance with an A 2 B table of the output profile. When values obtained by adding relative values of an adjustment target using PCS coordinates as a reference, are assumed as target PCS values, in an optimization step, an optimization process is carried out to obtain an optimal solution of adjustment color values. The optimization process includes an element for bringing provisional PCS values, obtained by converting, in accordance with the A 2 B table, provisional color values obtained by adding adjustment color values to the adjustment target color values, closer to the target PCS values.

COLOR MEASURING SYSTEM AND PROGRAM

A color measuring system includes a receiving section configured to receive designation of a color group including a plurality of colors, a determining section configured to determine whether a color measured by the color measuring section and a comparison target color in the color group coincide, and a control section configured to, when it is determined that the measured color and the comparison target color coincide, automatically advance a color measuring process to a color measuring process for performing the color measurement for a next color in the color group. 1. A color measuring system comprising:a color measuring section configured to perform color measurement;a receiving section configured to receive designation of a color group including a plurality of colors; anda processor configured to determine whether a color measured by the color measuring section and a comparison target color in the color group coincide and, when determining that the measured color and the comparison target color coincide, automatically advance a color measuring process to a color measuring process for performing the color measurement for a next color in the color group.2. The color measuring system according to claim 1 , wherein claim 1 , when determining that the measured color and the comparison target color do not coincide claim 1 , the processor automatically continues a color measuring process for performing the color measurement for a present color.3. The color measuring system according to claim 2 , wherein claim 2 , when determining that the measured color and the comparison target color do not coincide and when user operation for advancing the color measuring process to the color measuring process for the next color is performed claim 2 , the processor advances the color measuring process to the color measuring process for performing the color measurement for the next color.4. The color measuring system according to claim 1 , wherein claim 1 , when determining that a ...

INTELLIGENT ALIGNMENT SYSTEM AND METHOD FOR COLOR SENSING DEVICES

A computer-implemented intelligent alignment method for a color sensing device () which initially obtains a raw sense value measured by the color sensing device and converts the raw sense value to a tristimulus value (S). The color sensing device may be calibrated using a known set of colors (S). Raw readings received from the color sensing device may be mapped to known tristimulus values (S), and mapped values may be converted to a standard reference illuminant color space (S). A client-server system may be provided in which a color sensing device and one or more servers collectively execute operations according to the present disclosure. 112. A computer-implemented intelligent alignment method for a color sensing device () , which is characterized by:obtaining a raw sense value measured by the color sensing device;{'b': '401', 'converting the raw sense value to a tristimulus value (S);'}{'b': '402', 'calibrating the color sensing device using a known set of colors (S);'}{'b': '403', 'mapping raw readings received from the color sensing device to known tristimulus values (S); and'}{'b': '404', 'converting mapped values to a standard reference illuminant color space (S).'}2. The method according to claim 1 , further characterized by:{'b': '501', 'grouping at least one color sensing device according to a maximum permissible ΔE value for each color across batching colorset (S), wherein the maximum permissible ΔE value relates to a maximum color space distance associated with a perceived color difference when viewed by a human eye;'}{'b': '502', 'learning relationships between inputs and outputs to produce a model for future inputs (S);'}{'b': '503', 'receiving an unadjusted color reading as input (S); and'}{'b': '504', 'generating an adjusted color reading according to the model (S).'}3. The method according to claim 1 , further characterized by:{'b': '601', 'storing raw scan data and reference scan data (S);'}{'b': '602', 'executing a K Nearest Neighbor (KNN) ...

Detecting an impurity and/or a property of at least one part of a textile

In particular, a method performed by one or more devices is disclosed, the method comprising: obtaining an intensity information item representative of a spectral image resulting from a soiling of a textile and/or from at least one part of a textile; determining at least one output variable dependent on the soiling of the textile and/or at least one property of the textile from the intensity information item, wherein the output variable is determined by employing an adaptive evaluation algorithm, in particular an artificial neural network, wherein parameters of the adaptive evaluation algorithm are calibrated based on a plurality of training cases; outputting or triggering outputting of the at least one output variable. Furthermore, a device and a system for performing the subject method is disclosed.

Method and system for measuring biochemical information using color space conversion

A method according to an embodiment of the present invention includes acquiring an image of a urine test kit equipped with a biochemical sample rod including a plurality of pad cells including a plurality of sub-pad cells, extracting at least one potential RGB value from the image by means of a potential color extractor, and converting and analyzing the at least one potential RGB value using a plurality of color spaces included in a color space conversion engine and a color space analysis engine by means of an analyzing unit. The plurality of color spaces are randomly generated, and a color space having a smallest distance value from the potential RGB value is determined as an optimal color space.

Colorimetric method and colorimetric system

A colorimetric method includes a server generating a colorimetric job including information about an instruction to perform colorimetry and a colorimetry measurement condition, the server storing the colorimetric job, the server transmitting the colorimetric job, a colorimeter receiving the colorimetric job, and the colorimeter performing colorimetry based on the colorimetric job when the colorimetric job is selected by the colorimeter.

INTELLIGENT ALIGNMENT SYSTEM AND METHOD FOR COLOR SENSING DEVICES

A computer-implemented intelligent alignment method for a color sensing device () which initially obtains a raw sense value measured by the color sensing device and converts the raw sense value to a tristimulus value (S). The color sensing device may be calibrated using a known set of colors (S). Raw readings received from the color sensing device may be mapped to known tristimulus values (S), and mapped values may be converted to a standard reference illuminant color space (S). A client-server system may be provided in which a color sensing device and one or more servers collectively execute operations according to the present disclosure. 1. A computer-implemented intelligent alignment method for a color sensing device , the method comprisingobtaining a raw sense value measured by the color sensing device;converting the raw sense value to a tristimulus value;calibrating the color sensing device using a known set of colors;mapping raw readings received from the color sensing device to known tristimulus values; andconverting mapped values to a standard reference illuminant color space.2. The method according to claim 1 , further comprising:grouping at least one color sensing device according to a maximum permissible ΔE value for each color across batching color set, wherein the maximum permissible ΔE value relates to a maximum color space distance associated with a perceived color difference when viewed by a human eye;learning relationships between inputs and outputs to produce a model for future inputs;receiving an unadjusted color reading as input; andgenerating an adjusted color reading according to the model.3. The method according to claim 1 , further comprising:storing raw scan data and reference scan data;executing a K Nearest Neighbor (KNN) algorithm to search for K nearest scan to an unadjusted color reading; andreturning a weighted average of K reference scans associated with the unadjusted color reading.4. The method according to claim 1 , further ...

Coloring inspection apparatus and coloring inspection method

An object is to ensure clear and easy quantification of the textures such as metallic texture and shiny texture of pearl pigment and to rationalize comparison inspection between an inspection object and a reference object. A coloring inspection apparatus 1 includes a camera 2 that is configured to have three spectral sensitivities (S1(λ), S2(λ), S3(λ)) linearly and equivalently converted to a CIE XYZ color matching function, an arithmetic processing unit 3 that is configured to obtain and compute coloring data by conversion of an image which has three spectral sensitivities and is obtained by the camera 2 into tristimulus values X, Y and Z in a CIE XYZ color system, and lighting units 6 that are configured to illuminate an automobile 5 as an example of measuring object. The coloring inspection apparatus 1 computes a color distribution consistency index that represents a ratio of overlap of two xyz chromaticity histogram distributions of an inspection object Q and a reference object R, so as to inspect color.

METHOD AND SYSTEM FOR QUANTIFYING A SPECTRAL SIMILARITY BETWEEN A SAMPLE COLOR AND A TARGET COLOR

Described herein is a computer-implemented method and a system for providing a match metric for quantifying a spectral similarity of a target coating and at least one sample coating, the system including a computing device that performs a computing process, the computing process including: receiving reflectance values of the target coating and the sample coating; normalizing each of the reflectance values; generating a normalized reflectance curve for the target coating and for the sample coating; producing derivative values of the normalized reflectance curve of the target coating and derivative values of the normalized reflectance curve of the sample coating with respect to the wavelength; producing difference values between the derivative values of the target coating and the derivative values of the sample coating; and producing a match metric for a similarity between the normalized reflectance curves of the target coating and the sample coating. 1. A computer-implemented method for providing a match metric for quantifying a spectral similarity between a target coating and at least one sample coating , the method comprising at least the steps of:a) obtaining, for a number of wavelength values, reflectance values of the target coating and reflectance values of the sample coating, wherein the reflectance values of the target coating are determined at one or more measurement geometries, and the reflectance values of the sample coating are determined at the one or more measurement geometries; andby using one or more processors:b) normalizing each of the reflectance values of the target coating determined at the respective one of the one or more measurement geometries and the reflectance values of the sample coating determined at the respective one of the one or more measurement geometries by using a scaling function;c) generating a normalized reflectance curve for the target coating based on the normalized reflectance values of the target coating for each wavelength ...

DIGITAL PATHOLOGY COLOR CALIBRATION AND VALIDATION

Color calibration for digital pathology is provided. A standard glass slide is prepared with a specimen having zero or more stains. The specimen is scanned a first time using a hyperspectral imaging system to produce a first digital image having XYZ color values. The specimen is scanned a second time using a digital pathology imaging system to produce a second digital image having RGB color values. The first and second digital images are then registered against each other to align the digital image data. Individual pixels of the first and second images may be combined in the registration process so that the first and second digital images have substantially similar pixel sizes. A lookup table is generated to associate XYZ color values to RGB color values. Once the lookup table has been generated, it can be used to present RGB color on a display using the corresponding XYZ color. 1. A system comprising:a non-transitory computer readable medium configured to store data and executable programmed modules;at least one processor communicatively coupled with the non-transitory computer readable medium and configured to execute instructions stored thereon; obtain a first digital image of a specimen in XYZ color, the first digital image having a plurality of image pixels having a first image pixel size,', 'obtain a second digital image of the specimen in RGB color, the second digital image having a plurality of image pixels having a second image pixel size,', 'convert the first digital image and the second digital image to a common image pixel size, and', 'align the converted image pixels of the first digital image with corresponding converted image pixels of the second digital image., 'a register module stored in the non-transitory computer readable medium and configured to be executed by the processor, the register module configured to'}2. A system comprising:a non-transitory computer readable medium configured to store data and executable programmed modules;at least one ...

Rgb value calculation device

A microcomputer equally divides the circumference of a RGB circle into 6×n (n is an integer of 1 or more) parts, and calculates a RGB value of each divided color. (255, 0, 0) is stored as a reference RGB value of a reference color in a ROM in the microcomputer. The microcomputer 3 converts the reference RGB value depending on an angular difference on the RGB circle between a designated color whose RGB value is to be found and the reference color, and assumes the converted RGB value as a RGB value of the designated color.

METHOD AND DEVICE FOR DETERMINING YELLOWISH LEVEL OF SCREEN CAUSED BY PRESSING

A method and a device for determining a yellowish level of a screen caused by pressing are provided. The method includes: acquiring chromaticity coordinates of a plurality of test points of the screen during a pressing test; processing the acquired chromaticity coordinates, so as to acquire a chromatic aberration between the test point with a maximum value of X or a maximum value of Y in the chromaticity coordinates and the test point with a minimum value of X or a minimum value of Y in the chromaticity coordinates; and comparing the chromatic aberration with a predetermined standard chromatic aberration, so as to determine whether the screen is qualified after the pressing test. 1. A method for determining a yellowish level of a screen caused by pressing , comprising:acquiring chromaticity coordinates of a plurality of test points of the screen during a pressing test;processing the acquired chromaticity coordinates, so as to acquire a chromatic aberration between the test point with a maximum value of X or a maximum value of Y in the chromaticity coordinates and the test point with a minimum value of X or a minimum value of Y in the chromaticity coordinates; andcomparing the chromatic aberration with a predetermined standard chromatic aberration, so as to determine whether the screen is qualified after the pressing test.2. The method according to claim 1 , wherein the step of acquiring chromaticity coordinates of a plurality of test points of the screen during a pressing test comprises:selecting, prior to the pressing test, an odd number of test points which are equally-spaced, along a direction of a short side of the screen;acquiring initial chromaticity coordinates of the test points prior to the pressing test; andacquiring, during the pressing test, the chromaticity coordinates of the test points every N thousands times the screen have been pressed, wherein N is a positive integer.3. The method according to claim 2 , wherein the step of processing 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. 1. A system for determining a color match , comprising:a database storing color definitions, each having a unique RGB value;a template card comprising at least one reference scale;a memory for storing pre-determined calibration RGB values corresponding to the at least one reference scale; and receive a first image of the template card and color sample,', 'process the first image and output a sample RGB value corresponding to the color sample and at least one reference scale RGB value,', 'apply color correction to the sample RGB value based on a difference between the at least one reference scale RGB value and a corresponding calibration RGB value of the at least one reference scale to produce a color corrected sample RGB value, and', 'compare the color corrected sample RGB value with the RGB values of the color definitions stored within the database to determine a color match., 'a processor configured to2. The system of claim 1 , wherein the processor is further configured to apply a predetermined least squares fitting function to the color corrected RGB value prior to comparing the color corrected sample RGB value with the RGB values of the color definitions stored within the database.3. The system of claim 1 , further comprising a camera configured to capture the first image.4. The system of claim 1 , wherein the template card comprises a substrate and a cut-out claim 1 , wherein the color sample portion of the image is in the cut-out.5. The system of claim 4 , wherein the at least one reference scale comprises a modulated gray scale arranged on the substrate.6. The system ...

Image forming apparatus, calibration method, and drying determination method

An image forming apparatus includes a printing unit that prints at least one object image using a color material; a color information acquiring unit that acquires color information of the object image; and a control unit that starts one of colorimetry of the object image using the color information acquired by the color information acquiring unit and color adjustment of the printing unit after a variation amount of color information of the object image measured at different points of time is equal to or smaller than a predetermined threshold.

INSPECTION APPARATUS AND INSPECTION METHOD OF COLORIMETRIC VALUE

An inspection apparatus includes a colorimetric value acquisition unit that acquires a colorimetric value of a patch positioned on a color chart, a decision unit that decides an approval status of the colorimetric value of the patch, on a basis of the colorimetric value of the patch and a reference value prepared for the patch, and a display processing unit that displays, on a display unit, a chart image simulating the color chart, and in which a color representing a patch image positioned in the chart image is displayed in a shape representing a decision result made by the decision unit. 1. An inspection apparatus comprising:a colorimetric value acquisition unit that acquires a colorimetric value of a patch positioned on a color chart;a decision unit that decides an approval status of the colorimetric value of the patch, on a basis of the colorimetric value of the patch and a reference value prepared for the patch; anda display processing unit that displays, on a display unit, a chart image simulating the color chart, and in which a color representing a patch image positioned in the chart image is displayed in a shape representing a decision result made by the decision unit.2. The inspection apparatus according to claim 1 ,wherein the display processing unit displays, in a display region of the patch image, at least one of a first device color corresponding to the reference value in a display unit-dependent color space that depends on the display unit, and a second device color corresponding to the colorimetric value in the display unit-dependent color space.3. The inspection apparatus according to claim 1 ,wherein the display processing unit divides, when the decision result is a first decision out of a plurality of decisions, a display region of the patch image into an outer region and an inner region surrounded by the outer region, displays a first device color corresponding to the reference value in a display unit-dependent color space that depends on the ...

COLOR MOIRE REDUCING METHOD, COLOR MOIRE REDUCING APPARATUS, AND IMAGE PROCESSING APPARATUS

Provided are a color moire reducing method, a color moire reducing apparatus, and an image processing apparatus. The color moire reducing method includes calculating a plurality of local color mean values around a pixel in a selected region of a current image, calculating difference values between the local color mean values and a maximum difference value from among the difference values, and setting a moire correction weight to the pixel on the basis of the maximum difference value. 1. A method of reducing a color moire using an image processor , the method comprising:calculating, by a local mean calculator, a plurality of local color mean values around a pixel in a selected region of a current image;calculating, by the local mean calculator, difference values between the local color mean values and a maximum difference value from among the difference values;setting, by a weight setter, a moire correction weight to the pixel on the basis of the maximum difference value.2. The method of claim 1 , wherein the setting the moire correction weight comprises setting a value between a minimum weight and a maximum weight as the moire correction weight such that the maximum difference value and the moire correction weight are proportional to each other.3. The method of claim 2 , wherein the minimum weight and the maximum weight are 0 and 1 or 0 and 255 claim 2 , respectively.4. The method of claim 1 , further comprising correcting color values of the pixel by applying the moire correction weight to the color values of the pixel.5. The method of claim 4 , wherein a value of the moire correction weight is set between a minimum weight and a maximum weight claim 4 , andwherein a moire correction degree of the pixel to be corrected is in inverse proportion to the value of the moire correction weight.6. The method of claim 1 , wherein the setting the moire correction weight comprises:setting a maximum value of the moire correction weight to the pixel in response to the maximum ...

Identifying Home Décor Items and Paint Colors Based on Colors in an Image

In one scenario, a computer system wirelessly receives an image from a mobile device. The computer system identifies an available paint color closest to the color of the received image, and further identifies available paint colors that color coordinate with the paint color determined to correspond to the image. The computer system then displays to the user the paint color determined to correspond to the received image and the color coordinated paint colors, receives user input selecting the displayed colors, determines a tint formula corresponding to the selected color and produces a paint code corresponding to the selected color based on the tint formula. 1. A computerized method of transferring color information associated with a home project to a kiosk at a point of sale location corresponding to a retail establishment and producing paint having at least one desired color based thereon , comprising:wirelessly receiving an image at the kiosk from a mobile device;identifying, by the kiosk, at least one available paint color closest to the at least one color of the received image;identifying, by the kiosk, one or more available paint colors that color coordinate with the paint color determined to correspond to the image;displaying to the user, by the kiosk, the paint color determined to correspond to the received image and the one or more color coordinated paint colors;receiving, by the kiosk, user input selecting one or more of the displayed colors;determining, by the kiosk, a tint formula corresponding to the selected color; andproducing a paint code corresponding to the selected color based on the tint formula.2. The computerized method of claim 1 , wherein the available paint colors are specific to a specified paint manufacturer.3. The computerized method of claim 1 , wherein the color corresponding to the received image is a color corresponding to a portion of the image specified by the user.4. The computerized method of claim 1 , further comprising ...

MEASUREMENT DEVICE, PRINTER, AND MEASUREMENT METHOD

Provided is a measurement device including a spectroscope, a movement mechanism configured to relatively move the spectroscope along a first direction with respect to the measurement target, and one or more processors configured to execute detecting a measurement error indicating that spectroscopic measurement processing by the spectroscope is not executed normally, and controlling the spectroscope and the movement mechanism, in which the one or more processors, when the measurement target is a plurality of color patches arranged along the first direction, cause the spectroscope to execute first measurement processing of measuring light with a specific wavelength set in advance while relatively moving the spectroscope in the first direction to acquire a measured value with respect to the specific wavelength obtained by the first measurement processing and a position of the spectroscope, and when the measurement error is detected, move the spectroscope to a position where an amount of variation of the measured value is greater than or equal to a threshold value in a second direction opposite to the first direction and then move the spectroscope in the first direction. 1. A measurement device comprising:a spectroscope configured to measure light with a predetermined spectral wavelength of incident light from a measurement target and change the spectral wavelength;a movement mechanism configured to relatively move the spectroscope along a first direction with respect to the measurement target; and detecting a measurement error indicating that spectroscopic measurement processing by the spectroscope is not executed normally, and', 'controlling the spectroscope and the movement mechanism, wherein, 'one or more processors configured to execute'} when the measurement target is a plurality of color patches arranged along the first direction, cause the spectroscope to execute first measurement processing of measuring light with a specific wavelength set in advance while ...

PRINTING APPARATUS AND METHOD FOR GENERATING COLOR CHART DATA

A printing apparatus includes a control unit configured to generate color chart data, a transport unit configured to intermittently transport a medium, a printing unit configured to print a colorimetric patches on a processing unit region, a drying unit configured to dry the processing unit region, and a colorimetric unit configured to measure a color of the colorimetric patches in the processing unit region subjected to the drying, wherein the control unit is configured to acquire, based on a printing setting, a drying holding time during which the processing unit region is held at the drying unit, calculate a color-measurable patch number which is measurable by the colorimetric unit within the drying holding time, and generate the color chart data for printing a number of the colorimetric patches in the processing unit region, the number being less than or equal to the color-measurable patch number. 1. A printing apparatus comprising:a control unit configured to generate color chart data for printing a color chart including a plurality of colorimetric patches corresponding to a plurality of spot colors;a transport unit configured to intermittently transport a printing medium in a transport direction;a printing unit configured to print the colorimetric patches on a processing unit region aligned along the transport direction in the printing medium by attaching a color material to the printing medium based on the color chart data;a drying unit configured to dry the processing unit region in which the colorimetric patches are printed; anda colorimetric unit configured to measure colors of the colorimetric patches in the processing unit region subjected to the drying, whereinthe control unit is configured to:acquire, based on a printing setting, a drying holding time during which the processing unit region is held at the drying unit;calculate a color-measurable patch number that is a number of the colorimetric patches a color of which is measurable by the colorimetric ...

Process for displaying and designing colors

The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.

COLORIMETRIC VALUE DETECTION SYSTEM AND COLORIMETRIC VALUE DETECTION METHOD

A colorimetric value detection system detects a colorimetric value at a colorimetric position of a printed material using a colorimeter, and the colorimetric value detection system includes: a hardware processor that: calculates an output color of an object at the colorimetric position on the basis of target profile information of a printing device and object information of the printed material; and compares the colorimetric value of the colorimeter with the output color calculated by the hardware processor, wherein the colorimetric value of an object or at a position desired by a user is specified from a degree of coincidence of phase profiles of the colorimetric value. 1. A colorimetric value detection system that detects a colorimetric value at a colorimetric position of a printed material using a colorimeter , the colorimetric value detection system comprising:a hardware processor that:calculates an output color of an object at the colorimetric position on the basis of target profile information of a printing device and object information of the printed material; andcompares the colorimetric value of the colorimeter with the output color calculated by the hardware processor, whereinthe colorimetric value of an object or at a position desired by a user is specified from a degree of coincidence of phase profiles of the colorimetric value.2. The colorimetric value detection system according to claim 1 , whereinthe colorimetric value is a one-dimensional colorimetric value measured by a manual colorimeter and accumulated or a one-dimensional colorimetric value extracted from a two-dimensional colorimetric value measured by an automatic colorimeter.3. The colorimetric value detection system according to claim 1 , whereinthe phase profile is two-axis data of positional information of the colorimetric position and color information of a color space corresponding to each positional information.4. The colorimetric value detection system according to claim 1 , wherein ...

COLOR VALUES

A method is described. The method comprises determining a lightness coordinate value corresponding to a first color value along a black-white axis in an input device color space. A set of color values corresponding to the lightness coordinate value, in the input device color space is determined. A subset of the set, based on the respective angular positions of the color values in the set and an angular position of the first color value is determined. The method comprises deriving a set of print color space values of a target printing system comprising print color space values corresponding to the subset and a color value corresponding to the position of the lightness coordinate value, based on a predetermined association between input device color space values and print color space values. The method comprises determining a given print color space value corresponding to the first color value based on the derived set of print color space values. 1. A method comprising: determining a lightness coordinate value corresponding to a first colon value in an input device color space , the lightness coordinate value being a coordinate value along a black-white axis in the input device color space:determining, a set of color values corresponding to the lightness coordinate value of the first color value, in the input device color space:determining a subset of the set of color values, based on the respective angular positions of the color values in the set of color values and an angular position of the first color value, each of the angular positions being with respect to a given position, the given position being a position on the black-white coordinate axis of the lightness coordinate value of the first color value;deriving a set of print color space values of a target printing system, the set of print color space values comprising print color space values corresponding to the subset of the set of color values and a color value corresponding to the given position, based on a ...

METHOD AND APPARATUS FOR COLOUR IMAGING A THREE-DIMENSIONAL STRUCTURE

A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided. 1. A system for determining surface topology and associated color of an intraoral structure , the system comprising:a handheld imaging device comprising a probe, focusing optics configured to scan a focal plane of the handheld imaging device over a range of depths, an illuminator, and an image sensor configured to capture depth image data over the range of depths and color image data of the intraoral structure, wherein a time interval between capture of the depth image data and the color image data is within an interval between about 0 to about 20 milliseconds; and generate depth data of the intraoral structure portion using the depth image data from the handheld imaging device corresponding to a first spatial disposition relative to the intraoral structure,', 'generate color data of the intraoral structure using the color image data from the handheld imaging device corresponding to a second spatial disposition relative to the intraoral structure, and', 'provide a color three-dimensional numerical entity based on the depth data and the color data., 'one or more processors operably coupled to the hand-held imaging device, the one or more processors configured to cause the system to2. The system of claim 1 , wherein the second spatial disposition ...

SOLAR CELL MODULE

A solar cell module, which is easily coordinated with the color of an exterior member at the installation position, comprises a solar cell; a light receiving side sealing material and a light receiving side protection member laminated and disposed in this order on a light receiving side with reference to the solar cell; and a back-side sealing material and a back-side protection member laminated and arranged in this order on a back side on the opposite side from the light receiving side. A value computed from a measured value of the color of reflected light combining positive reflected light and diffused reflected light which are based on light that has become incident on an object to be measured, and a measured value of the color only of the diffused reflected light based on the light that has become incident on the object to be measured, satisfies a specific condition. 2. The solar cell module according to claim 1 , wherein [{'br': None, 'i': E', 'c−k, 'Δ[]≤60'}, {'br': None, 'where'}, {'br': None, 'i': E', 'c−k', 'L', 'Qc', 'L', 'Qk', 'a', 'Qc', 'a', 'Qk', 'b', 'Qc', 'b', 'Qk, 'sup': 2', '2', '2', '1/2, 'Δ[]={(*[]−*[])+(*[]−*[])+(*[]−*[])}.'}], '(4) a chromaticity difference ΔE[c−k] calculated from a measurement value Qc(L*[Qc], a*[Qc], b*[Qc]) for the solar cell itself and a measurement value Qk(L*[Qk], a*[Qk], b*[Qk]) for the back-side protection member itself satisfies the following condition3. The solar cell module according to claim 1 , comprisinga wiring member, wherein [{'br': None, 'i': E', 'm, 'Δ[−]≤30'}, {'br': None, 'where'}, {'br': None, 'i': E', 'm−t', 'L', 'Qm', 'L', 'Qt', 'a', 'Qm', 'a', 'Qt', 'b', 'Qm', 'b*{Qt, 'sup': 2', '2', '2', '1/2, 'Δ[]={(*[]−*[])+(*[]−*[])+(*[]−})}.'}], '(5) a chromaticity difference ΔE[m−t] calculated from the measurement value Qm(L*[Qm], a*[Qm], b*[Qm]) in the (2) and a measurement value Qt(L*[Qt], a*[Qt], b*[Qt]) by light incident from the light receiving side protection member on a part, in which the light receiving ...

METHOD AND SYSTEM FOR COLOR CALIBRATION OF AN IMAGING DEVICE

A method for characterizing a digital color camera includes, for each of three primary colors used in a field sequential color virtual image, determining a conversion model for each color using RGB values and the color-measurement values. For each primary color, the method includes illuminating a display device using an input light beam of a primary color having spectral properties representative of a light beam in a virtual image in a wearable device. The method includes capturing, with the digital color camera, an image of the display device, and determining, from the image, RGB values for each primary color. The method includes capturing, with a color-measurement device, a color-measurement value associated with each corresponding primary color at the display device, thereby acquiring a color-measurement value in an absolute color space. A conversion model for each color is determined using RGB values and the color-measurement values. 1. A method for utilizing a color camera for measuring chromaticity and luminance of a virtual image generated by a device , wherein the device includes:a field sequential color display illuminated by narrowband sources; anda waveguide type optical element for displaying a virtual image over a field of view, the waveguide type optical element having properties that further narrow and spectrally shift dominant wavelength, saturation, and hue of light over the field of view of the virtual image, wherein the waveguide type optical element includes diffractive structures;the method comprising:illuminating an integrating sphere or a projection screen with narrowband light sources similar to those utilized in generating the virtual image, or similar to those emerging from the virtual image;adding dichroic filters, and rotating the dichroic filters, prior to the integrating sphere or the projection screen to mimic bandwidth narrowing and spectrally shifted dominant wavelength of light in the virtual image;using the color camera to capture ...

COVER DEVICE AND METHOD FOR MEASURING HUE USING MOBILE DEVICE

The present invention provides a method and a cover device for measuring hue using a mobile device. After the camera unit of the mobile device acquires the ColorChecker image, the mobile device converts the color space of the image and measures the hues of the ColorChecker. In addition, while acquiring the ColorChecker image, the ColorChecker is placed in the cover device. 1. A method for measuring hue using a mobile device , comprising steps of:photographing a ColorChecker using a camera unit of a mobile device to give a first ColorChecker image, and said ColorChecker including a plurality of color blocks;said mobile device converting the color space of said first ColorChecker image using a color-space conversion algorithm, and giving a second ColorChecker image; andsaid mobile device acquiring the pixel values of each said color block in said second ColorChecker image.2. The method for measuring hue using a mobile device of claim 1 , and before said step of photographing said ColorChecker using said camera unit of said mobile device to give said first ColorChecker image claim 1 , further comprising a step of said mobile device aligning said ColorChecker according to a plurality of alignment marks on said ColorChecker.3. The method for measuring hue using a mobile device of claim 1 , and after said step of said mobile device acquiring the pixel values of each said color block in said second ColorChecker image claim 1 , further comprising steps of:transmitting the pixel values of each said color block to a server;said server acquiring a piece of description information of color characteristics using an algorithm according to the pixel values of each said color block; andtransmitting said description information of color characteristics to said mobile device.4. The method for measuring hue using a mobile device of claim 1 , wherein said ColorChecker is printed by a printing apparatus.5. The method for measuring hue using a mobile device of claim 1 , wherein said ...

Computer-implemented methods and systems for a color generator

One exemplary embodiment involves a computer-implemented method that comprises rendering, by a processor, an interface comprising a synopsis node and a plurality of configurable component nodes, each of the component odes corresponding to a respective color, and the synopsis node having a color that is a combination of the colors of the synopsis node. The method additionally includes, receiving, by the processor, input changing an influence of a first component node and determining, by the processor, a change in the color of the synopsis node based on the received input, wherein the change represents a combination of the colors of the component nodes. Additionally, the method includes rendering, by the processor, the changed synopsis node color in the synopsis node.

WAVELENGTH MONITOR AND WAVELENGTH MONITORING METHOD

The transmittance of a filter periodically varies with respect to the incident light frequency. Provided that fis the sum of Fand v, or the difference obtained by subtracting Ffrom v, depending on the kth light source among multiple light sources, an incidence guide causes light from the plurality of light sources to be incident on the filter such that the propagation angle of light when light from the kth light source propagates through the interior of the filter equals θobtained by computation using f. The incidence guide causes light to be incident on the filter, taking fto be the sum of vand Ffor at least one of the light sources, and taking fto be the difference between vand Ffor at least one other of the light sources. A detector detects the intensity of transmitted light that transmits through the filter. 1. A wavelength monitor comprising:a filter whose transmittance periodically varies with respect to incident light frequency;{'sub': k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k, 'an incidence guide that, provided that vis a frequency acting as a reference for monitoring wavelength of light from a kth light source from among a plurality of sequentially arranged light sources, provided that Fis a positive value according to the kth light source, provided that fis a sum obtained by adding Fto Vor a difference obtained by subtracting Ffrom v, provided that mis the order of interference according to the kth light source, provided that c is the speed of light, provided that n is the refractive index of the filter, and provided that L is the length of the filter, causes light from the plurality of light sources to be incident on the filter such that, when light from the kth light source propagates through the interior of the filter, a propagation angle of that light equals θobtained by computation using m, c, n, L, and f; and'}a detector that senses transmitted light transmitted through the filter, and detects the intensity of transmitted light;{'sub': k', ...

Hair reader, dispenser device and related systems and methods

The present disclosure relates to hair readers, dispenser devices, and related systems and methods. For example the present application relates to a method of optically acquiring data from keratinous fibers, the method comprising: a. illuminating the keratinous fibers such that light reflected and/or deflected and/or transmitted by the fibers is incident upon a detector and converted into electrical signals by the detector; and b. computing, from electrical signals, a plurality of spectra of the keratinous fibers such that each spectrum of the plurality of spectra respectively corresponds to (i) a different respective portion of the keratinous fibers and/or (ii) material within a different sub-region of space within which at least a portion of the keratinous fibers are disposed.

APPARATUS AND METHOD FOR EVALUATING METAL SURFACE TEXTURE

An object is to quantify the texture such as irregularity and gloss of a metal surface. Centers of Lab chromaticity distributions are identified (S), and one of the Lab chromaticity distribution is entirely shifted (mapped) by deviations ΔA, ΔB and ΔL of a central coordinate, such that one of central coordinates of two distributions U(L,a,b) and U(L,a,b) matches with the other central coordinate (S). A texture spread index that indicates a difference in spatial spread is then computed (S). This configuration computes the spatial spread of the Lab chromaticity distribution in a three-dimensional space, and quantifies the irregularity of an inspection plane by diffraction phenomenon of illumination light. The difference in spread other than the color is applicable to evaluation of the irregularity of the metal surface or the like. 1. A texture evaluation apparatus of a metal surface , comprising:{'b': 1', '2', '3, 'a camera configured to have three spectral sensitivities (S(λ), S(λ), S(λ)) linearly and equivalently converted to a CIE XYZ color matching function;'}an arithmetic processor configured to obtain and compute data by conversion of an image that has three spectral sensitivities and that is obtained by the camera into tristimulus values X, Y and Z in a CIE XYZ color system; anda light source configured to illuminate a metal surface, whereinthe arithmetic processor is configured to:set a specified inspection area out of data obtained by imaging the metal surface;divide the inspection area into grids in coordinates corresponding to a color space in an XYZ color system, and integrate number of pixels included in each grid with respect to an inspection plane and a reference plane, so as to create respective color space histogram distributions in the XYZ color system; andidentify centers of the two color space histogram distributions of the inspection plane and the reference plane, and compute a texture spread index indicating a difference in spread between the ...

METHOD AND APPARATUS FOR COMBINING COLORANTS USING CAMERA

A method and apparatus for combining colorants using a camera. The method of combining colorants using a camera includes extracting color data from an image of an object captured using a camera, converting the color data into spectral reflection factor data of the object on the basis of a pre-constructed camera color model, acquiring spectral reflection factor data for an estimated colorant combination obtained by simulating a combination of colorant samples obtained from a colorant database, and selecting an optimal colorant combination by comparing errors between the spectral reflection factor data of the object and the spectral reflection factor data for the estimated colorant combination. Therefore, it is possible to use a highly accessible and inexpensive camera, such as a smartphone camera, and thus an ordinary user can easily find an optimal colorant combination. 1. A method of combining colorants using a camera , comprising:extracting color data from an image of an object captured using a camera;converting the color data into spectral reflection factor data of the object on the basis of a pre-constructed camera color model;acquiring spectral reflection factor data for an estimated colorant combination obtained by simulating a combination of colorant samples obtained from a colorant database; andselecting an optimal colorant combination by comparing errors between the spectral reflection factor data of the object and the spectral reflection factor data for the estimated colorant combination.2. The method of claim 1 , wherein the camera color model is constructed by obtaining sample color data of a colored colorant sample captured using the camera and sample spectral reflection factor data of the colored colorant sample measured using a spectrocolorimeter and defining a relationship between the sample color data and the sample spectral reflection factor data.3. The method of claim 1 , wherein the converting of the color data into the spectral reflection factor ...

AUTOMATED METHODS AND SYSTEMS TO FILL BACKGROUND AND INTERSTITIAL SPACE IN A VISUAL OBJECT LAYOUT

Embodiments herein disclose automated methods and systems to fill background and interstitial space in the visual object layout with one or more colors that bleed/blend into each other. Embodiments herein automate the creation of multi-colored backgrounds for filling the interstitial space. 1. A method for filling interstitial space in a visual object layout , the method comprising:detecting, by a color management module, available interstitial space in the layout;determining, by the color management module, at least one color present in the at least one image present in the layout;determining, by the color management module, locations of each determined color in the layout;determining, by the color management module, at least one drop point for at least one color;dropping, by the color management module, the determined color at the respective drop points at a maximum intensity; andblending, by the color management module, the dropped colors.2. The method claim 1 , as claimed in claim 1 , wherein the drop points are the locations where the color intensity is the maximum for a given color specification.3. The method claim 1 , as claimed in claim 1 , wherein the method further comprises determining claim 1 , by the color management module claim 1 , a relative ratio of each determined color; wherein relative ratio is based on the relative importance of each color to the overall layout.4. The method claim 1 , as claimed in claim 1 , wherein the method further comprises applying at least one imaging parameter to the blended colors.5. The method claim 1 , as claimed in claim 1 , wherein the method further comprises applying an overlay texture claim 1 , by the color management module claim 1 , on top of the blended colors.6. The method claim 1 , as claimed in claim 1 , wherein the method further comprises applying at least one imaging parameter to the texture.7. A system for filling interstitial space in a visual object layout claim 1 , the system configured fordetecting ...

Measurement Data Management System, Measurement Data Management Method, And Optical Characteristic Measurement Device

A measurement data management system includes a first storage processing unit which makes a first storage unit store diagnosis information obtained by examining a state of an optical characteristic measurement device, a second storage processing unit which make a second storage unit store measurement data obtained by measuring prescribed optical characteristics of an object of measurement by using the optical characteristic measurement device in association with the diagnosis information, and an output unit which outputs the diagnosis information which has been associated with the measurement data and stored in the first storage unit when outputting the measurement data stored in the second storage unit. 1. A measurement data management system comprising:a hardware processorthat:stores diagnosis information obtained by examining a state of an optical characteristic measurement device regarding prescribed items;stores measurement data obtained by measuring prescribed optical characteristics of an object of measurement by using the optical characteristic measurement device in association with the diagnosis information; andoutputs the diagnosis information which has been associated with the measurement data and stored in the hardware processor when outputting the measurement data stored in the hardware processor.2. The measurement data management system according to claim 1 , wherein stores the plurality of pieces of diagnosis information obtained by examining the state of the optical characteristic measurement device at different timings, and', 'outputs the latest diagnosis information of the plurality of pieces of the diagnosis information., 'the hardware processor'}3. The measurement data management system according to claim 1 , whereinto the measurement data stored in the hardware processor, at least one of a measuring person, a temperature of a measuring place, and a humidity of the measuring place at the time when the optical characteristic measurement device ...

PROCESS FOR PREPARING A COLOUR CHART

The invention relates to a process for arranging a plurality of colours or coloured objects in a defined sequence so that each colour or coloured object has at least one neighbouring colour or coloured object, comprising the steps of a) assigning all colours or coloured objects a position in an at least two-dimensional colour space, b) assigning all neighbouring colours or coloured objects a colour difference value corresponding to the length of a vector connecting the neighbouring colours in the colour space, c) assigning a direction to every vector in the colour space connecting two neighbouring colours or coloured objects, d) arranging the sequence of colours or coloured objects in such a way that the overall sum of i. all colour difference values over the sequence and ii. all direction difference values of two consecutive vectors is minimized, and wherein a weight factor x is assigned to the sum of all colour difference values and a weight factor y is assigned to the sum of all direction difference values of two consecutive vectors prior to minimization of the overall sum, and wherein at least one of x and y is not zero. 2. The process according to claim 1 , wherein the colour space has at least three dimensions.3. The process according to claim 2 , wherein the colour space has the dimensions of lightness claim 2 , chroma claim 2 , and hue.4. The process according to claim 2 , wherein the colour space is the CIELAB colour space.5. The process according to claim 1 , wherein the process is implemented for effect colours having a coarseness value claim 1 , and wherein the colour space includes the dimension coarseness.6. The process according to claim 1 , wherein neither x nor y is zero.7. The process according to claim 1 , wherein the process is implemented to produce a printed colour chart or a colour chart on an electronic colour display screen.8. The process according to claim 1 , wherein the process is implemented to arrange a plurality of painted objects.9. ...

METHOD AND APPARATUS FOR COLOUR IMAGING A THREE-DIMENSIONAL STRUCTURE

A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided. 1. A system for determining the surface topology and associated color of at least a portion of a three dimensional structure , comprising: a scanning system configured to provide depth data of said portion, the depth data corresponding to a plurality of data points defined on a plane substantially orthogonal to a depth direction; and', 'an imaging system configured to provide two-dimensional color image data of said portion associated with said plurality of data points; and, 'a hand-held device comprisinga processor operably coupled to the hand-held device and configured to associate the depth data with the color image data.2. A system according to claim 1 , wherein the imaging system is configured to provide the color image data independently from the depth data.3. A system according to claim 1 , wherein the plurality of data points is associated with a two-dimensional reference array.4. A system according to claim 1 , wherein the operation of the scanning system is based on confocal imaging techniques.5. A system according to claim 1 , wherein the depth data and the color image data are associated by aligning the plurality of data points and the color image data in the same frame of reference.6. A system according to claim 1 , wherein the ...

CORRECTING REFLECTANCE OUTPUT VALUES

In an example of the disclosure, a device () includes: an acquiring unit to obtain first reflectance output values acquired from reference samples () by a reference color measuring device and to obtain second reflectance output values acquired from the reference samples () by a second color measuring device (); a processing unit to determine, for a plurality of wavelength values, correspondences between a first reflectance output value acquired by the reference color measuring device and a second reflectance output value acquired by the second color measuring device, and to perform, for each wavelength value, an interpolation based on the correspondences to obtain interpolation data; and a correcting unit to correct, based on the interpolation data, third reflectance output values acquired by the second color measuring device () from a sample of interest (). 1. A method including:obtaining first reflectance output values acquired from at least two reference samples by a reference color measuring device over a wavelength range;obtaining second reflectance output values acquired from the at least two reference samples by a second color measuring device, different from the reference color measuring device, over the wavelength range;determining, for a plurality of wavelength values within said wavelength range, correspondences between a first reflectance output value acquired by the reference color measuring device and a second reflectance output value acquired by the second color measuring device;performing, for each wavelength value, an interpolation based on the correspondences to obtain interpolation data;obtaining third reflectance output values acquired from a sample of interest by the second color measuring device over the wavelength range; andcorrecting the third reflectance output values based on the interpolation data.2. The method of claim 1 , wherein the first reflectance output values include:a first set of first reflectance output values acquired from a ...

Image processing apparatus, image processing method, and medium

An image processing apparatus generates color conversion data in which first color component values in a first color space are associated with second color component values in a second color space. The apparatus executes determining a reference curve that takes a maximum value in the second color space among curves representing gradations of color components in the first color space; determining interpolation guide curves that represent a maximum gradation and a minimum gradation of a color component to be interpolated in the first color space; executing colorimetry on color patches corresponding to second color component values in the reference and interpolation guide curves; interpolating second color component values not included in the reference and interpolation guide curves, based on the second color component values obtained by the colorimetry; and generating the color conversion data by using the second color component values obtained by the colorimetry and the interpolation.

METHOD AND APPARATUS FOR COLOUR IMAGING A THREE-DIMENSIONAL STRUCTURE

A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided. 1. A system for generating a 3D model of an intraoral structure portion , the system comprising:a hand-held imaging device comprising a probe, focusing optics configured to scan a focal plane of the hand-held imaging device over a range of depths, an illuminator, and an image sensor configured to capture image data over the range of depths of the intraoral structure, wherein the image data includes first image data captured in response to illuminating the intraoral structure portion with light of a first wavelength and second image data captured in response to illuminating the intraoral structure portion with light of a second wavelength; and generate depth data of the intraoral structure portion using the first image data from the hand-held imaging device; and', 'map the second image data to the depth data., 'one or more processors operably coupled to the hand-held imaging device, the one or more processors configured to cause the system to2. The system of claim 1 , wherein the depth data comprises a 3D surface model of the intraoral portion.3. The system of claim 1 , wherein the illuminator emits light of the first wavelength and first image data comprises light of the first wavelength returning from the intraoral structure.4. The system of claim ...

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. 1. A color conversion information generating apparatus comprising:a specific color value obtaining unit that obtains a specific color value of a device-dependent color space, which is dependent on an imaging device imaging a subject;a first color element value obtaining unit that obtains a first color element value of a device-independent color space, which is not dependent on a device, by converting the specific color value in accordance with color reproduction characteristics of a display device which displays an image obtained as a result of the imaging device imaging the subject;a second color element value obtaining unit that obtains a second color element value of the device-independent color space by setting a reference value and by converting a colorimetric value of a color sample which approximates to the specific color value on the basis of the reference value; anda generating unit that generates, if the first color element value approximates to the second color element value, color conversion ...

Measurement method and device of light source parameters, illumination system and terminal apparatus

The examples of the disclosure disclose measurement method and device of light source parameters, an illumination system and a terminal apparatus. The method includes: collecting signal values of a light source to be measured from a color sensor, the color sensor including at least six response channels; preprocessing the signal values that have been collected, the preprocessing including normalization processing and standardization processing; constructing model features according to the signal values that have been preprocessed, and determining a light source type of the light source to be measured according to the model features; inputting the model features and the light source type that has been determined into a color rendering index prediction model to obtain a color rendering index of the light source to be measured.

Color conversion information generation method, color conversion information generation system, and program therefor

A method for generating color conversion information including providing a user with color sample information for determining a color sample of which color characteristic information is known, receiving, from the user, an image including the color sample determined by the color sample information in a lighting environment, and generating color conversion information which corresponds to the lighting environment and is correlated with the user, based on the image and the color characteristic information of the color sample determined by the color sample information. The color conversion information converts between color information and color characteristic information, the color information is information which corresponds to a lighting environment and indicates colors of an object in the lighting environment, and the color characteristic information indicates color characteristics of the object.

COORDINATE VALUES IN A COLOR SPACE

Certain examples described herein relate to color spaces. In some cases, data representing a set of color values is obtained. Each color value has, for each of first, second and third axes defining a three-dimensional color space, a respective coordinate value. In some cases, for each of the set of color values, the coordinate value for the first and/or second axis is transformed dependent on the coordinate value for the third axis, to generate data representing a transformed set of color values. A set of output color values in an output color space is derived using the generated data. Output data associating the set of output color values in the output color space with a set of further color values in a further color space is generated. 1. A method comprising:obtaining data representing a set of color values, each color value having, for each of first, second and third axes defining a three-dimensional color space, a respective coordinate value;transforming, for each color value of the set of color values, the coordinate value for the first and/or second axis dependent on the coordinate value for the third axis, to generate data representing a transformed set of color values;deriving a set of output color values in an output color space using the generated data; andgenerating output data associating the set of output color values in the output color space with a set of further color values in a further color space.2. The method of claim 1 , wherein the set of output color values comprises a set of Neugebauer Primary Area Coverage (NPac) vectors claim 1 , each NPac vector defining a statistical distribution of Neugebauer Primaries (NPs) over an area of a halftone.3. The method of claim 1 , wherein the set of color values represented in the obtained data comprises two color values having different coordinate values for the third axis and the same coordinate values as each other for the first and/or second axis.4. The method of claim 1 , wherein the transformed set of ...

Compensate Surface Gloss in Spectrum Recovery

In accordance with one or more implementations of the apparatus, system and methods described, a sample measurement device is provided that is configured to measure the color of a sample. The sample measurement device includes at least one light source configured to illuminate the sample; at least one light sensor configured to output a signal in response to light emitted by light source and reflected off the sample being received by at least a portion of the light sensor; and a processor configured to receive the signal and calculate a color value for the sample, the processor configured to calculate the color value by at least adjusting the signal using a calibration factor. 1. A spectrum recovery apparatus configured to measure the color of a sample comprising:at least one light source configured to illuminate the sample;at least one light sensor configured output a signal in response to light emitted by light source and reflected off the sample being received by at least a portion of the least one light sensor; and receive the signal,', 'calculate an adjusted spectrum vector for the sample derived from the signal and at least one calibration factor,', 'output the adjusted spectrum vector of the sample to at least one output device that is configured to receive data from the one or more processors., 'one or more processors operative to2. The spectrum recovery apparatus of claim 1 , wherein the one or more processors is configured by one or more modules operating as code in the memory thereof to calculate the adjusted spectrum vector Raccording to:{'br': None, 'i': R', 'v', '. . . v', 'T*M,, 'sub': convert', '1', '31, '=()='}{'sub': 1', '0', 'n, 'sup': 'th', 'where T=(t. . . t1) and where tis the sensor measurement of the sample on the nchannel obtained from the light sensor and M is the calibration factor.'}3. The spectrum apparatus of claim 2 , wherein M is a matrix.4. The spectrum recovery apparatus of claim 1 , wherein the orientation of the at least one light ...

TASK TO WALL COLOR CONTROL

A light sensor is disclosed that includes a photosensor; a memory; a communication interface; and a controller coupled with the photo sensor, the communication interface, and the memory. The controller may be configured to perform a number of operations. For example, the controller may be configured to sample from the photosensor a light intensity of light within a first spectral range at a non-task location within an architectural space; and determine a change in the first spectral range output of a light source to produce a desired amount of light within the first spectral range at a task location based on the sensed light intensity of the color channel at the non-task location. In some embodiments, the task location and the non-task locations are different locations within the architectural space. The controller may also be configured to transmit the change in the color channel output to a light source. 1. A light sensor comprising:a photosensor;a memory;a communication interface; and sample from the photosensor a first value representing an intensity of light within a first spectral range at a non-task location within an architectural space;', 'determine a first change in a light output within the first spectral range of a light source to produce a desired amount of light within the first spectral range at a task location based on the first value, wherein the task location and the non-task locations are different locations within the architectural space; and', 'transmit via the communication interface the first change in a light output within the first spectral range to the light source., 'a controller coupled with the photosensor, the communication interface, and the memory, wherein the controller is configured to2. The light sensor according to claim 1 , wherein the controller is further configured to:sample from the photosensor a second value representing an intensity of light within a second spectral range at a non-task location within an architectural space ...

Method and apparatus for colour imaging a three-dimensional structure

A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided.

DEVICE FOR SELECTING AN EVC ORTHOSIS

Method for selecting an elastic venous restraint orthosis intended to be slipped onto a lower limb of a patient. Acquisition of a photograph representing the skin of the limb and a calibration map including one or more calibration zones. The calibration map is placed on the limb in a position termed the “acquisition position.” Calibration of the photograph by the calibration zone or zones, in such a way that the representation of the skin on the photograph exhibits a calibrated colour. Selection, as a function of the calibrated colour, by computer and from a set of colours of a tone chart, of a tone chart colour, preferably of the tone chart colour closest to the calibrated colour, termed the “optimal colour,” and then determination, by computer, of an orthosis colour as a function of the tone chart colour selected. Selection of an orthosis exhibiting the orthosis colour.

Spectrum recovery in a sample

A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.

FABRIC VALIDATION USING SPECTRAL MEASUREMENT

Fabric validation using spectral measurement is provided. In various embodiments, a near-infrared absorption spectrum of a fabric sample is received from a near-infrared spectrometer. A plurality of features is extracted from the spectrum. The plurality of features is provided to a trained classifier. The trained classifier provides a similarity score indicative of the similarity of the fabric sample to a reference fabric sample. 1. A system comprising:a near-infrared spectrometer; receiving a near-infrared absorption spectrum of a fabric sample from the near-infrared spectrometer;', 'extracting a plurality of features from the spectrum;', 'providing the plurality of features to a trained classifier;', 'obtaining from the trained classifier a similarity score indicative of the similarity of the fabric sample to a reference fabric sample., 'a computing node operatively coupled to the near-infrared spectroscope, the computing node comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor of the computing node to cause the processor to perform a method comprising2. The system of claim 1 , wherein the near-infrared spectrometer comprises a hand-held spectrometer.3. The system of claim 1 , wherein the computing node is local to the near-infrared spectrometer.4. The system of claim 3 , wherein the computing node and the near-infrared spectrometer are operatively coupled via a local area network.5. The system of claim 4 , wherein the local area network comprises a wireless network.6. The system of claim 3 , wherein the computing node and the near-infrared spectrometer are operatively coupled via a personal area network.7. The system of claim 3 , wherein the computing node and the near-infrared spectrometer are integrated into a handheld device.8. The system of claim 1 , whereinproviding the plurality of features to the trained classifier comprises sending the plurality of features to a ...

SYSTEM AND METHOD OF QUANTIFYING COLOR AND INTENSITY OF LIGHT SOURCES

A system and method of quantifying color and intensity of light sources including LEDs, HBLEDs (High Brightness LEDs), and other Solid State Lights (SSLs) using C-parameters to model a Spectral Power Distribution (SPD) to improve precision, accuracy, repeatability and usefulness of measurement of optical properties of wavelength and radiant flux in manufacturing of an object, designing products and processes that use the object, and describing/defining the object, is provided. In one embodiment, a method of characterizing a Solid State Light (SSL) source includes a SSL source under test (DUT), a Spectral Power Distribution (SPD) of light emission of the SSL source, a curve-fitting function, a set of configuration data comprising the order of the curve-fitting function, the number of nodes, wavelength boundary limits, saturation threshold, and noise floor threshold, a computing device for curve-fitting, node detection, iteration and program control and inputting and outputting data; and a set of C-Parameters, noise parameters, and confidence values. 129-. (canceled)30. A system of characterizing color of a Solid State Light (SSL) source , comprising:an energy source for stimulating a SSL source to emit light;a spectral acquisition apparatus for acquiring a Spectral Power Distribution (SPD) of light emitted by the SSL source; find a node in the SPD, wherein the node in the SPD comprises a continuous subset of the SPD having a predetermined minimum and maximum wavelength, wherein the node corresponds to a specific light generating mechanism;', 'determine coefficients of one or more Gaussian functions for curve fitting the node, wherein the coefficients of the one or more Gaussian functions are expressed as a set of C-parameters; and', 'output the set of C-Parameters that describes the SPD of the SSL source., 'a computing device, wherein the computing device comprises a C-parameter module configured to31. The system of claim 30 , wherein the coefficients of each of the ...

AUTOMATED ANALYSIS OF THERMALLY-SENSITIVE COATING AND METHOD THEREFOR

A method for thermally-sensitive coating analysis of a component includes imaging the coated, exposed component over a range of distinct frequencies as selected by a narrowband variable filter; estimating parameters of non-uniformity correction (NUC) for every pixel at every wavelength; constructing a 2D temperature map on a pixel-by-pixel basis using the non-uniformity correction; and mapping the 2D temperature map to a 3D computer aided design (CAD) model. 1. A method for thermally-sensitive coating analysis of a component , the method comprising:performing one or more scans of a thermally-sensitive coated and thermally exposed component to generate image data;estimating parameters of non-uniformity correction (NUC) for one or more pixels of one or more dark field images and one or more corresponding pixels of one or more bright field images;constructing a 2D temperature map for one or more pixels of the scanned image using the parameters from the non-uniformity correction; andmapping the 2D temperature map to a 3D computer aided design (CAD) model.2. The method as recited in claim 1 , wherein the scanning is over one or more of a range of distinct frequencies as selected by a narrowband variable filter claim 1 , a distinct range of polarizations claim 1 , and a distinct range of incident angles.3. The method as recited in claim 1 , wherein mapping the 2D temperature map to a 3D computer aided design (CAD) model comprises defining a cost function and minimizing the error between the 3D coordinates by back-projecting features from the 2D temperature map.4. The method as recited in claim 3 , wherein the mapping comprises using a non-linear least squares method.5. The method as recited in claim 1 , wherein estimating parameters of non-uniformity correction (NUC) comprises defining intensities of one or more pixels of a dark field as null and defining intensities of corresponding one or more pixels of a bright field to a nominal intensity.6. The method as recited in ...

Color picking device and color picking remote controller

A color picking device and a color picking remote controller are provided. The color picking device is configured to acquire a color of a target object, which includes: a substrate; a light emitting module configured to emit white light toward the target object, where the light emitting module that includes a light source and a light distribution element; and a color receiving module configured to receive light reflected by the target object and having the color of the target object after the target object is illuminated by the white light, where the color receiving module includes a first housing, a lens assembly disposed in the first housing, and the sensing element, where the lens assembly includes a first convex lens, an aperture, a concave lens and a second convex lens that are coaxially arranged from top to bottom along a top of the first housing.

COLOR CALIBRATION

Certain examples described herein relate to color calibration. In certain cases, a plurality of test patches are printed with a printing system, the test patches corresponding to a set of initial color sample points and a set of test colors. Color properties of the printed test patches are measured. In certain examples, a gamut descriptor is identified from a plurality of gamut descriptors using the color properties of the test colors. Each gamut descriptor defines a set of up-sampling parameters for a particular color gamut. Measured color properties for the initial color sample points are up-sampled using the set of up-sampling parameters for the identified gamut descriptor to generate up-sampled data. In certain cases, the up-sampled data is used to generate a color mapping to be applied to print job data received by the printing system. 1. A printing system comprising:a printing device to print a plurality of calibration areas onto a print substrate, the calibration areas corresponding to a set of initial colors and a set of test colors;a measurement interface to receive an indication of measured color properties of the printed calibration areas;a memory comprising a plurality of gamut references, each gamut reference comprising data to define a corresponding set of up-sampling parameters for a particular color gamut; and identify a gamut reference from the plurality of gamut references on the basis of measured color properties of the test colors;', 'up-sample, using the set of up-sampling parameters for the identified gamut reference, measured color properties for the initial colors to derive up-sampled data; and', 'generate, using the up-sampled data, a color mapping to be applied to print input data to calibrate the printing system., 'a print controller to2. The printing system of claim 1 ,wherein the printing system is to operate in accordance with an image processing pipeline comprising a color separation stage, andwherein the color mapping is to be applied ...

Verfahren zur Herstellung von Farben

Die Erfindung betrifft ein Verfahren (100) zur Herstellung von Farbelementen eines Farbschlüssels. Dazu werdden zunächst Farbwerte bekannter Farbelemente (15) von Farbschlüsseln (10) mit ähnlichen Helligkeitswerten, Farbtönen und Chromata erfasst. In einem weiteren Verfahrensschritt werden die Farbwerte jedes neuen Farbelementes unter Vergrößerung eines Farbabstands (16) zwischen den Helligkeitswerten, Farbtönen und Chromata der zuvor erfassten Farbwerte bestimmt.

Spectral characteristics prediction method and non-transitory computer-readable recording medium recording spectral characteristics prediction program

First relational equations which represent characteristics of respective sample colors are obtained, and for the respective sample colors, prediction values of spectral characteristics of characteristics-acquired gradation values for a prediction target color are obtained using the first relational equations. Difference values between the prediction values and actual measurement values are obtained, and a sample color for which a minimum difference value is obtained is selected as a reference color. A second relational equation that represents characteristics of the reference color is obtained, and a prediction value of spectral characteristics of a prediction target gradation value for the prediction target color is obtained using the second relational equation.

IMAGE PROCESSING APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An image processing apparatus includes a processor configured to: store a first color patch used in using metallic toner and a second color patch used in using CMYK toner other than the metallic toner without using the metallic toner; receive a first colorimetric value obtained by measuring color of the first color patch and a second colorimetric value obtained by measuring color of the second color patch; calculate a third colorimetric value on a basis of the first colorimetric value obtained by measuring the color of the first color patch and the second colorimetric value obtained by measuring the color of the second color patch, and generate a profile to be used to convert an input color value into an output color value, the profile being generated on a basis of the third colorimetric value; and calculate the third colorimetric value that ranges from the first colorimetric value to the second colorimetric value in response to a total amount of CMYK toner being lower than or equal to a threshold, the total amount of the CMYK toner resulting from color conversion of the input color value performed by using the profile, and calculate the third colorimetric value that coincides with the first colorimetric value in response to the total amount exceeding the threshold. 1. An image processing apparatus comprising: store a first color patch used in using metallic toner and a second color patch used in using CMYK toner other than the metallic toner without using the metallic toner;', 'receive a first colorimetric value obtained by measuring color of the first color patch and a second colorimetric value obtained by measuring color of the second color patch; and', 'calculate a third colorimetric value on a basis of the first colorimetric value obtained by measuring the color of the first color patch and the second colorimetric value obtained by measuring the color of the second color patch, and generate a profile to be used to convert an input color value into an output ...

Device and Method for Color Indentification

Devices and methods of the present technology utilize wavelength-dependent transmittance of 2D materials to identify the wavelength of an electromagnetic radiation. A wide range of 2D materials can be used, making possible the use of the technology over a large portion of the electromagnetic spectrum, from gamma rays to the far infrared. When combined with appropriate algorithms and artificial intelligence, the technology can identify the wavelength of one or more monochromatic sources, or can identify color through the use of a training set. When applied in an array format, the technology can provide color imaging or spectral imaging using different regions of the electromagnetic spectrum. 1. A device for identifying a wavelength of an electromagnetic radiation within a wavelength band , the device comprising:(i) a first two-dimensional material having a nanoscale thickness and a first wavelength-dependent transmittance over the wavelength band;(ii) a second two-dimensional material having a nanoscale thickness and a second wavelength-dependent transmittance over the wavelength band;(iii) one or more detectors suitable for detecting electromagnetic radiation over the wavelength band; wherein the device is configured to allow the electromagnetic radiation to penetrate the first two-dimensional material and illuminate one of said one or more detectors, whereby the detector provides a first electrical signal, and to allow the electromagnetic radiation to penetrate the second two-dimensional material and illuminate one of said one or more detectors, whereby the detector provides a second electrical signal; and optionally(iv) a processor and a memory comprising instructions for identifying the wavelength of said electromagnetic radiation using said first and second electrical signals.2. The device of claim 1 , wherein the wavelength band is in the range from about 1 picometer to about 100 micrometers claim 1 , or from about 200 nanometers to about 3 micrometers.3. The ...

宝石的颜色测量

本公开涉及用于测量宝石的颜色参数的设备。该设备包括用于在测量位置处支撑宝石的支撑结构，用于照射测量位置处的宝石的照明系统，指向测量位置以获得宝石图像的成像装置以及用于分析宝石的图像的图像处理器。图像处理器被配置为识别与图像中的宝石相对应的一组宝石像素并识别每个宝石像素的亮度值和色度值。从色度空间中的宝石像素的色度值的表达式计算颜色矢量(401)，该颜色矢量在色度空间中从具有相对较高亮度值(405)的宝石像素延伸到具有较低亮度值(407)的宝石像素。该颜色矢量用于确定颜色参数。

Method for analyzing hair and predicting achievable hair dyeing ending colors

本发明公开了基于接受者的特定输入值分析头发、预测可获得的最终颜色并推荐染发剂的方法和系统。本发明包括下列方法：(a)基于至少一种接受者的原始头发值确定可获得的最终头发颜色的方法；(b)基于至少一种接受者的原始头发值确定染发剂的方法；和(c)为头发颜色分析系统输出图像的方法。本发明还包括：(d)一种为消费者提供染发产品的方法，该方法包括下列步骤：(i)为消费者确定可获得的最终头发颜色；(ii)为消费者描绘可获得的最终颜色；(iii)使消费者选择所需的最终头发颜色；和(iv)为消费者推荐可获得所述最终所需头发颜色的染发剂。

Sintered density analysis method of Uranium oxide(UOx) by Spectrophotometer

본 발명은 핵연료 제조공정에 있어서, 중우라늄산암모늄(ammonium diuranate)의 색도를 분광기(Spectrophotometer)로 측정함으로써, 소결체 제조공정 투입 전에 우라늄산화물(UOx)의 소결밀도를 예측 계산 또는 분석하는 것에 관한 것이다. 상기와 같은 본 발명에 따르면, 우라늄산화물(UOx)의 소결밀도 분석에 있어 소결체 상태에서만 소결밀도를 분석할 수 있으며 분석 결과에 따라 후속처리공정이 필요하다는 종래 기술의 한계를 극복하여, 우라늄산화물(UOx)의 소결밀도를 사전에 예측하는 간편하고 신뢰성이 높은 방법을 제공한다.