Abstract: An image processing control apparatus includes a hardware processor. The hardware processor obtains: read image data obtained through reading a color sample and shown in a first color system; original image data corresponding to the color sample and shown in a second color system; and region-by-attribute information indicating a first region corresponding to spot-color printing and a second region corresponding to decoration printing, the first and second regions being in the original image data. The hardware processor determines a color conversion parameter for color conversion of the first region and a color conversion parameter for color conversion of a third region different from the first and second regions in the original image data by using the read image data. The hardware processor determines a color conversion parameter for color conversion of the second region according to predetermined values shown in the second color system.

Abstract: An image processing control apparatus includes a hardware processor. The hardware processor obtains: read image data obtained through reading a color sample and shown in a first color system; original image data corresponding to the color sample and shown in a second color system; and region-by-attribute information indicating a first region corresponding to spot-color printing and a second region corresponding to decoration printing, the first and second regions being in the original image data. The hardware processor determines a color conversion parameter for color conversion of the first region and a color conversion parameter for color conversion of a third region different from the first and second regions in the original image data by using the read image data. The hardware processor determines a color conversion parameter for color conversion of the second region according to predetermined values shown in the second color system.

Abstract: Provided are a non-transitory recording medium, a scanner profile correcting method and a printer. A printer outputs a color chart including color patches for correcting a scanner profile. A hardware processor of the printer or a device in a printing system obtains measured RGB values and measured colorimetric values of the color patches. The hardware processor calculates, for each K component value, two kinds of correlation of each of R, G and B component values with lightness component values, by using a scanner profile, and the measured RGB values and colorimetric values. The hardware processor calculates, for each K component value, a difference in each of R, G and B components between RGB values given from the first correlations and the second correlations, both correlated with each of lightness component values, and creates correction tables for R, G and B components, to be used for correcting the scanner profile.

Abstract: Provided are a non-transitory recording medium, a scanner profile correcting method and a printer. A printer outputs a color chart including color patches for correcting a scanner profile. A hardware processor of the printer or a device in a printing system obtains measured RGB values and measured colorimetric values of the color patches. The hardware processor calculates, for each K component value, two kinds of correlation of each of R, G and B component values with lightness component values, by using a scanner profile, and the measured RGB values and colorimetric values. The hardware processor calculates, for each K component value, a difference in each of R, G and B components between RGB values given from the first correlations and the second correlations, both correlated with each of lightness component values, and creates correction tables for R, G and B components, to be used for correcting the scanner profile.

Abstract: A control device estimates a color verification result by using the following method. The method includes obtaining a first set of color values by using measurements of a color chart printed by a printer without color management; calculating second and third sets of color values based on increased color gamut and reduced color gamut of the printer due to a conditional change of the printer; creating a first to third printer-profiles by using the first to third sets of color values; calculating theoretical reference values of target color values and first to third theoretical color values by using the first to third printer-profiles; calculating first to third color differences by using the theoretical reference values and the first to third theoretical color values; obtaining an estimated result of the color verification by comparing the first to third color differences with a preset standard value; and outputting the estimated result.

Abstract: A method for creating a scanner profile according to the present invention includes the steps of: by reading, by a scanner, a printed material of chart image data comprising a plurality of patches which are composed of C, M, Y, K values and differentiated in color and density from each other, acquiring a first color value for the patches; acquiring a K value for the patches of the chart image data; acquiring a second color value for the patches by color-measuring the printed material by the colorimeter; and creating a scanner profile describing a relationship of the second color value to the first color value and the K value, based on the acquired first color value, K value, and second color value for each of the plurality of patches.

Abstract: A control device estimates a color verification result by using the following method. The method includes obtaining a first set of color values by using measurements of a color chart printed by a printer without color management; calculating second and third sets of color values based on increased color gamut and reduced color gamut of the printer due to a conditional change of the printer; creating a first to third printer-profiles by using the first to third sets of color values; calculating theoretical reference values of target color values and first to third theoretical color values by using the first to third printer-profiles; calculating first to third color differences by using the theoretical reference values and the first to third theoretical color values; obtaining an estimated result of the color verification by comparing the first to third color differences with a preset standard value; and outputting the estimated result.

Abstract: A method for creating a scanner profile according to the present invention includes the steps of: by reading, by a scanner, a printed material of chart image data comprising a plurality of patches which are composed of C, M, Y, K values and differentiated in color and density from each other, acquiring a first color value for the patches; acquiring a K value for the patches of the chart image data; acquiring a second color value for the patches by color-measuring the printed material by the colorimeter; and creating a scanner profile describing a relationship of the second color value to the first color value and the K value, based on the acquired first color value, K value, and second color value for each of the plurality of patches.

Abstract: A PC performing print setting of print data to be output by a printer capable of executing a plurality of calibration methods, including a selection unit that selects one color profile as a color profile to be used for color conversion of the print data from a plurality of color profiles, a determination unit that determines whether a first calibration method executed at a time of creation of one color profile selected by the selection unit agrees with a second calibration method currently registered in the printer, with reference to the one color profile selected by the selection unit and a correction table indicating a correspondence relation between output characteristic values of the printer before and after correction by the second calibration method, and a first notification unit that notifies a user of a determination result by the determination unit.

Abstract: Provided are a color-adjusting method and a non-transitory computer readable medium storing a color-adjusting program. The color-adjusting method is used in converting colors of a first device into colors of a second device. The method includes: using a processor of a color-conversion device to perform: representing the gamut of the second device on a lightness-chroma plane for a hue in a color system; obtaining a limiting value of a total quantity of color material; dividing a region outside the gamut into a high-lightness region and a low-lightness region, and further dividing the low-lightness region into a low-chroma region and a medium-high-chroma region based on a reference point defined according to the limiting value; defining a gamut-mapping angle for each of the resulting divided regions; and mapping out-gamut colors within the gamut of the second device by using the gamut-mapping angle.

Abstract: Provided are a color-adjusting method and a non-transitory computer readable medium storing a color-adjusting program. The color-adjusting method is used in converting colors of a first device into colors of a second device. The method includes: using a processor of a color-conversion device to perform: representing the gamut of the second device on a lightness-chroma plane for a hue in a color system; obtaining a limiting value of a total quantity of color material; dividing a region outside the gamut into a high-lightness region and a low-lightness region, and further dividing the low-lightness region into a low-chroma region and a medium-high-chroma region based on a reference point defined according to the limiting value; defining a gamut-mapping angle for each of the resulting divided regions; and mapping out-gamut colors within the gamut of the second device by using the gamut-mapping angle.

Abstract: The present invention provides a system of a digital color proof in which consistent images are obtained while minimizing density variation in spite of various variations of conditions due to the use of a silver halide light-sensitive color material, specifically, the present invention provides a method for forming proof images similar to printed images in terms of various characteristics such as the paper quality of silver halide light-sensitive materials, the dot gain, and the density.

Abstract: A silver halide photographic laight-sensitive material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support, wherein at least one of the silver halide emulsion layer and the non-light-sensitive hydrophilic colloid layer contains a compound represented by the following Formula 1, and the silver halide emulsion layer contains tabular silver halide grains having an average aspect ratio of not less than 2.0 account for at least 50 % of total grain projected area of the emulsion, and the tabular grains have an average silver iodide content is not more than 1 mole-%;Formula 1R.sub.11 --(S).sub.n --R.sub.12wherein R.sub.11 and R.sub.12 are each independently represent an aliphatic group, an aromatic group or a heterocyclic group, the groups represented by R.sub.11 and R.sub.12 may be the same or different and they may be bonded with together to form a ring; and n is an integer of from 2 to 6.

Abstract: Disclosed is an image receiving sheet for thermal-transfer recording medium, which comprises a support and provided thereon, an image-receiving layer containing a resin having a dyeability to a thermal diffusible dye, wherein said image-receiving layer contains an inorganic oxide capable of absorbing UV-rays.An image receiving sheet for thermal-transfer recording medium is improved in an image preservabilities, a light-fastness and a dye-bleeding resistance.