Patent ID: 7463386

Claim:
A color processing method of mapping an input color within a first gamut to an output color within a second gamut, comprising the steps of: acquiring first gamut information of the first gamut and second gamut information of the second gamut; setting a first correction area based on a first gray line corresponding to the first gamut information and an achromatic axis, and setting a second correction area based on a second gray line corresponding to the second gamut information and the achromatic axis; setting a favorable gray line based on chromaticity of a white and black corresponding to the second gamut information, and predetermined chromaticity of intermediate lightness; converting first color signals in the first correction area to match the first gray line with the achromatic axis, and converting second color signals in the second correction area to match the second gray line with the achromatic axis; mapping a first converted gamut based on the converted first color signals to a second converted gamut based on the converted second signals; and converting a gray line of the gamut mapped from the first converted gamut to match the favorable gray line.