| 摘要 |
PROBLEM TO BE SOLVED: To obtain a net % determination method capable of finding out CMYK balance by using a suitable restriction condition. SOLUTION: A K version determination part 204 determines the net % of K color in accordance with coordinates Lab on a color space corresponding to a target color, an LUT 206 for guiding coordinates L' a' b' corresponding to a printing color from the net % data of four CMYK colors and a CMY version determination part 205 determines the net % of a CMY version based on the net % data of the determined K color and the coordinates Lab on the color space corresponding to the target color.
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