COLOR GAMUT MAPPING METHOD, COLOR GAMUT MAPPING DEVICE, ITS PROGRAM AND STORAGE MEDIUM

摘要

PPROBLEM TO BE SOLVED: To provide a color gamut mapping device for preventing a failure such as tone inversion due to color gamut mapping processing. PSOLUTION: An outside-color gamut color correction data calculator 200 prepares correction data for correcting the outside-color color signal of a reproduction destination device as a main object in order not to generate the inversion of saturation due to color gamut mapping as much as possible. The inversion of saturation which is likely to be generated due to the color gamut mapping can be prevented by color gamut mapping the primary or secondary saturation color of an original device into the primary or secondary saturation color of the corresponding reproduction destination device, mapping the cusp of the original device into the cusp of the reproduction destination device, color gamut mapping color on the color gamut ridgeline of the original device into color on the color gamut ridgeline of the corresponding reproduction destination device. A color gamut mapping part 50 gamut-compresses the color reproduction area of the color signal whose color reproduction area is corrected by an outside-reproduction area color correction processing part 20. PCOPYRIGHT: (C)2004,JPO