Patent ID: 7859729
Filing Date: 2010-12-28
Classification: H04N

Abstract:
1. A color image processing system for color conversion processing, the color image processing system comprising: an output condition determining means for determining a presence or absence of an instruction for gradation correction near a dark spot from an operational part of the color image processing system; a minimum lightness value comparing means for comparing a minimum lightness value of a color gamut corresponding to a source profile and a minimum lightness value of an output color gamut; a correction color conversion table generating means for generating a correction color conversion table for correcting the output color gamut if the output condition determining means determines the presence of the instruction and if the minimum lightness value comparing means indicates that a difference between the minimum lightness value of the color gamut corresponding to the source profile and the minimum lightness value of the output color gamut is greater than a given value; and a color conversion processing means for performing color conversion processing, based on whether the output condition determining means determines the presence or absence of the instruction or a comparison result by the minimum lightness value comparing means, by selectively using a color conversion table or the correction color conversion table, wherein the correction color conversion table generating means does not generate the correction color conversion table for correcting the output color gamut, even if the output condition determining means determines the presence of the instruction, if the minimum lightness value comparing means indicates that the difference between the minimum lightness value of the color gamut corresponding to the source profile and the minimum lightness value of the output color gamut is less than the given value.