Patent ID: 8023149

Claim:
A color processing method performed by a color processing apparatus including a processor and a memory, the method comprising: obtaining gamut information of a color gamut of a destination device; setting a mapping target color represented by lightness, chroma and hue values in a color gamut of a source device, the mapping target color corresponding to a lattice point of a color conversion table stored in the memory; generating a plurality of neighbor colors of the mapping target color by repeatedly changing the hue value of the mapping target color in accordance with a number of the plurality of neighbor colors while keeping unchanged the lightness and chroma values of the mapping target color in the color gamut of the source device, wherein the plurality of neighbor colors exist between the lattice point of the mapping target color and lattice points adjacent to the lattice point of the mapping target color in the color gamut of the source device; mapping the mapping target color and each neighbor color of the plurality of neighbor colors into the color gamut of the destination device based on the gamut information; calculating, using the processor, a mapped color corresponding to the mapping target color in the color gamut of the destination device, wherein the mapped color has a mapped lightness value, a mapped chroma value and a mapped hue value, the mapped lightness and chroma values being calculated by averaging lightness values and chroma values obtained in the mapping of the mapping target color and the plurality of neighbor colors, and the mapped hue value being a result of the mapping of the mapping target color; and storing the mapped color in the color conversion table.