Abstract: A generating device that generates a first color conversion LUT for converting an input image signal value into an output value of an actual color material installed in an image forming device, includes: an acquiring unit that acquires grid point position information indicating positions of the grid points in the first color conversion LUT; and a generating unit that generates the first color conversion LUT on the basis of grid point position information, wherein the generating unit determines whether or not an inflection point of an output value of the actual color material is at a position of the grid point, corrects at least some output values for at least two actual color materials in the second color conversion LUT in accordance with a determination result, and generates the first color conversion LUT obtained by thinning out the grid points in the second color conversion LUT.

Abstract: Appearance data including at least color information and gloss information of an object to be reproduced is inputted. Color mapping is performed to map the color information into a color reproducible range of an appearance reproduction apparatus, based on information indicating an appearance reproducible range of the appearance reproduction apparatus. A gloss reproducible range, in which the appearance reproduction apparatus can reproduce gloss while keeping the color information after the color mapping, is obtained based on the information indicating the appearance reproducible range. Gloss mapping is performed to map the gloss information into the gloss reproducible range. An output signal to be outputted to the appearance reproduction apparatus is generated based on mapped appearance data including the color information after the color mapping and the gloss information after the gloss mapping.

Abstract: An image processing apparatus according an aspect of the present disclosure converts image signals indicating an image to output signals including signals corresponding to individual color components that an output device deals with by interpolation processing using a look-up table. The apparatus includes a first conversion unit and at least one second conversion unit. The first conversion unit converts the image signals to image signals corresponding to linearity of the signals corresponding to the individual color components. The at least one second conversion unit converts the image signals converted by the first conversion unit to the output signals by the interpolation processing.

Abstract: Sharpness of image data in a low-frequency component, which is deceased by an image forming apparatus, is recovered and the recovered image data is converted into halftone image data. Halftone processing includes calculating edge intensity in a local region, dividing the local region into a first pixel group and a second pixel group based on a pixel value of each pixel, determining a distribution order of dots based on a pixel value of each pixel, a threshold value, and the edge intensity such that dots are likely to be distributed to the first pixel group and dots are unlikely to be distributed to the second pixel group, and determining an output value for each pixel in the local region by distributing dots to some pixels included in the local region as much as a number of dots to be output to the local region while referring to the distribution order.

Abstract: An object of the present invention is to provide a technique related to correction processing that can be applied to a variety of pieces of information with different resolutions, specifically, related to processing to increase resolution. The present invention is an information processing apparatus including: an acquisition unit configured to acquire first subject information and second subject information for the same subject; and a correction unit configured to increase the resolution of the second subject information based on similarity between the first subject information and the second subject information, and the first subject information and the second subject information are map data representing different physical quantities or map data representing the same physical quantity acquired by different measuring methods or different measuring devices.

Abstract: A unit acquires first image data expressing a color of an image and second image data expressing a feature of the image. A unit color-separates the first image data into first and second color material amount data. A unit generates inverted data by inverting the second image data. A unit generates first corrected data from the first color material amount data and the inverted data and generates second corrected data from the second color material amount data and the second image data. A unit generates, based on the first corrected data, first data indicating on dot printing positions during a printing and scanning operation, generates, based on the second corrected data, second data indicating on dot printing positions in the operation, and generates, based on the first and second data, image forming data.

Abstract: In order to implement preferred sharpness recovery processing for an image, an image processing apparatus which generates, based on input image data, halftone image data used for an image forming process of forming an image on a print medium. The apparatus converts the input image data into color material amount data used for the image forming process; performs, on the color material amount data, gamma correction to compensate for non-linearity of an input/output density in the image forming process; performs, on the color material amount data after the gamma correction, recovery processing to compensate for sharpness degradation of an image formed by the image forming process; and performs halftone processing on the color material amount data after the recovery processing to generate halftone image data.

Abstract: Sharpness of image data in a low-frequency component, which is deceased by an image forming apparatus, is recovered and the recovered image data is converted into halftone image data. Halftone processing includes calculating edge intensity in a local region, dividing the local region into a first pixel group and a second pixel group based on a pixel value of each pixel, determining a distribution order of dots based on a pixel value of each pixel, a threshold value, and the edge intensity such that dots are likely to be distributed to the first pixel group and dots are unlikely to be distributed to the second pixel group, and determining an output value for each pixel in the local region by distributing dots to some pixels included in the local region as much as a number of dots to be output to the local region while referring to the distribution order.

Abstract: A unit acquires first image data expressing a color of an image and second image data expressing a feature of the image. A unit color-separates the first image data into first and second color material amount data. A unit generates inverted data by inverting the second image data. A unit generates first corrected data from the first color material amount data and the inverted data and generates second corrected data from the second color material amount data and the second image data. A unit generates, based on the first corrected data, first data indicating on dot printing positions during a printing and scanning operation, generates, based on the second corrected data, second data indicating on dot printing positions in the operation, and generates, based on the first and second data, image forming data.

Abstract: An object of the present invention is to provide a technique related to correction processing that can be applied to a variety of pieces of information with different resolutions, specifically, related to processing to increase resolution. The present invention is an information processing apparatus including: an acquisition unit configured to acquire first subject information and second subject information for the same subject; and a correction unit configured to increase the resolution of the second subject information based on similarity between the first subject information and the second subject information, and the first subject information and the second subject information are map data representing different physical quantities or map data representing the same physical quantity acquired by different measuring methods or different measuring devices.

Abstract: An image processing apparatus for forming an image by performing a plurality of times of recording on a same region of a recording medium by using a recording head including a plurality of recording elements for each of a first color material and a second color material, and a generation unit configured to generate recording data corresponding to each scan of the first color material and the second color material, wherein the generation unit generates, in a case where a defective recording element occurs among the plurality of recording elements for recording the first color material, recording data corresponding to each scan of the first color material by complementing a recording amount assigned to the defective recording element so that impact order between the first color material and the second color material is not changed.

Abstract: Data of each plane capable of obtaining a high-quality output image is generated. An image processing apparatus for quantizing input image data having gradation of an m value (m is a natural number) into output image data having gradation of an n value (n is a natural number smaller than m) includes a quantization unit configured to quantize input image data having gradation of an m value in a target pixel into output image data having gradation of an n value, and a plane separation unit configured to determine that the quantization value quantized by the quantization unit is to be assigned to the target pixel of which plane out of planes of two types or more, wherein the plane separation unit determines that the quantization value is to be assigned to the target pixel of which plane, based on distance information of the target pixel indicating distances, to the target pixel, from pixels on which a recording material is recorded in the each plane.

Abstract: An image processing apparatus for forming an image by performing a plurality of times of recording on a same region of a recording medium by using a recording head including a plurality of recording elements for each of a first color material and a second color material, and a generation unit configured to generate recording data corresponding to each scan of the first color material and the second color material, wherein the generation unit generates, in a case where a defective recording element occurs among the plurality of recording elements for recording the first color material, recording data corresponding to each scan of the first color material by complementing a recording amount assigned to the defective recording element so that impact order between the first color material and the second color material is not changed.

Abstract: The value of a diffusing error for an interest pixel is added to image data of the interest pixel, and is calculated from error data occurred in quantization of pixels adjacent to the interest pixel. The image data, to which the value of the diffusing error is added, is quantized using a quantization threshold. Error data of the interest pixel is calculated from the result of the quantization and the image data to which the value of the diffusing error is added. Pixels which are adjacent to the interest pixel and have quantization results corresponding to the image data of the interest pixel are detected, and information between pixels is calculated based on differences between the image data and quantization results of adjacent pixels which fall within ranges corresponding to the detected adjacent pixels. The quantization threshold for the interest pixel is set based on the information between pixels.

Abstract: Image data of a pixel of interest is inputted, diffusion data diffused from errors occurred by decrease of a tonal number of image data is added to the image data of the pixel of interest, the tonal number of the image data of the pixel of interest, to which the diffusion data has been added, is decreased using an error diffusion method or minimized average error method, and an error occurred in the decrease of the tonal number for the pixel of interest is diffused to pixels close to the pixel of interest. Further, the errors occurred by the decrease of the tonal number of the image data in a predetermined image region are integrated as an integrated error, and a threshold value used in the error diffusion method or minimized average error method is set based on the image data of the pixel of interest and the integrated error.

Abstract: An image forming apparatus and an image forming method for forming an image by using a plurality of color materials including pigment as a color material, by causing a plurality recording heads to perform a recording scan in a direction perpendicular to a conveyance direction of a recording medium to scan same image areas on the recording medium more than once. The recording heads are fitted with recording-element columns as many as kinds of color materials. Each recording-element column includes a plurality of recording elements arranged in a direction parallel with the conveyance direction of the recording medium. The image forming apparatus includes an input unit configured to input image data to display an image, a conversion unit configured to convert image data into dot data representing an image by a plurality of dots, and an allocation unit configured to allocate the recording elements to the dot data in each of recording scans.

Abstract: Data of each plane capable of obtaining a high-quality output image is generated. An image processing apparatus for quantizing input image data having gradation of an m value (m is a natural number) into output image data having gradation of an n value (n is a natural number smaller than m) includes a quantization unit configured to quantize input image data having gradation of an m value in a target pixel into output image data having gradation of an n value, and a plane separation unit configured to determine that the quantization value quantized by the quantization unit is to be assigned to the target pixel of which plane out of planes of two types or more, wherein the plane separation unit determines that the quantization value is to be assigned to the target pixel of which plane, based on distance information of the target pixel indicating distances, to the target pixel, from pixels on which a recording material is recorded in the each plane.

Abstract: The value of a diffusing error for an interest pixel is added to image data of the interest pixel, and is calculated from error data occurred in quantization of pixels adjacent to the interest pixel. The image data, to which the value of the diffusing error is added, is quantized using a quantization threshold. Error data of the interest pixel is calculated from the result of the quantization and the image data to which the value of the diffusing error is added. Pixels which are adjacent to the interest pixel and have quantization results corresponding to the image data of the interest pixel are detected, and information between pixels is calculated based on differences between the image data and quantization results of adjacent pixels which fall within ranges corresponding to the detected adjacent pixels. The quantization threshold for the interest pixel is set based on the information between pixels.

Abstract: Image data of a pixel of interest is inputted, diffusion data diffused from errors occurred by decrease of a tonal number of image data is added to the image data of the pixel of interest, the tonal number of the image data of the pixel of interest, to which the diffusion data has been added, is decreased using an error diffusion method or minimized average error method, and an error occurred in the decrease of the tonal number for the pixel of interest is diffused to pixels close to the pixel of interest. Further, the errors occurred by the decrease of the tonal number of the image data in a predetermined image region are integrated as an integrated error, and a threshold value used in the error diffusion method or minimized average error method is set based on the image data of the pixel of interest and the integrated error.