色処理装置、色処理方法、および、画像形成装置

IMAGE PROCESSING APPARATUS AND METHOD THEREOF

PROBLEM TO BE SOLVED: To control printing process according to occurrence of unevenness in glossiness by predicting occurrence rate of uneven glossiness in an image to be printed. SOLUTION: When an image is printed by an image output part 104 that uses color material of pigment type, an uneven glossiness predicting part 102 detects image characteristic of the image to be printed, and based on the image characteristic, predicts occurrence rate of uneven glossiness when the image is printed. An uneven glossiness determining part 103, based on the occurrence rate of uneven glossiness, determines whether suppressing process is executed for uneven glossiness in the printing process of the image. COPYRIGHT: (C)2011,JPO&INPIT ...

色処理装置及び色処理方法

画像処理装置およびその制御方法

画像形成装置および画像形成方法

画像処理装置および画像処理方法

画像形成装置、画像形成方法、および、プログラム

IMAGE FORMING APPARATUS AND CONTROL METHOD FOR THE SAME

PROBLEM TO BE SOLVED: To suppress unevenness of gloss generated in an image formed with a pigment ink by a simple configuration. SOLUTION: An image processor 102 sends out nozzle data for every scanning of a recording head 1044 to a printer 104 for performing a multi-pass printing with the pigment ink. In this case, since the glossiness of recorded image becomes lower as there are many numbers of passes at image formation, the brightness of input image data is determined in an input signal value determining section 1024. Then, the substantial number of passes is controlled so that all-pass printing may be performed if the brightness is within a predetermined middle brightness range, and a limited-pass printing may be performed with the number of passes smaller than all passes if the brightness is outside the middle brightness range. Thereby, since the glossiness is reduced in the middle brightness region where the glossiness is relatively high while the glossiness is increased in the high ...

IMAGE PROCESSING APPARATUS AND METHOD

PROBLEM TO BE SOLVED: To suppress the occurrence of band-shaped heterogeneity of glossiness upon image formation by multi-pass recording. SOLUTION: In the image processing apparatus 100 generating image data for use in the image formation by the multi-pass recording, a pixel position determiner part 106 determines the position of a pixel of interest to be color-separated relative to a recording region corresponding to a conveyance distance of the recording medium in one pass of the multi-pass recording. An LUT selector part 105 selects a color separation table corresponding to the result of the determination. A color separator part 103 color-separates the image data of the pixel of interest using the selected color separation table. COPYRIGHT: (C)2011,JPO&INPIT ...

METHOD AND DEVICE FOR GENERATING COLOR SEPARATION TABLE, AND IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To suppress heterogeneity of gloss characteristic of an image formed using color inks and a clear color ink. SOLUTION: A gloss characteristic measurement unit 703 obtains measurement values regarding the gloss characteristic of a plurality of patches formed based on patch data in which the amount of clear color ink is changed with respect to a color separation value from a color separation table 401 for color inks. A color separation table generation unit 403 selects one measurement value for each color or gray level indicated by the patch data, and generates, based on the selected measurement value and the color separation table 401 for color inks, a color separation table in a case where the color inks and the clear color ink are used. COPYRIGHT: (C)2012,JPO&INPIT ...

画像処理装置及び画像処理方法

IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME

PROBLEM TO BE SOLVED: To solve such a problem that since an image printed on an exclusive sheet by using a printing apparatus is stuck to a solid having a three-dimensional curved surface when the image is recorded on the solid, an exclusive plate for each of the images to be recorded must be formed and it is unsuitable for printing a small amount of images for private use. SOLUTION: A method for controlling an image forming apparatus being an inkjet printer comprises: a step S801 of acquiring three-dimensional shape data of a recording medium; a step S802 of detecting the information on a slope of a recording area of the recording medium with respect to the face surface of a recording head on the basis of the three-dimensional shape data; and a step S803 of controlling the amount of a color material to be discharged with respect to image data so that the first color information to be obtained when image data are formed in the recording area becomes equal to the second color information ...