| 摘要 |
PROBLEM TO BE SOLVED: To provide a device which determine color conversion coefficients actualizing color conversion between color output devices so that color matching and superior continuity are obtained in the entire color space. SOLUTION: A weighting coefficient determination part 207 sends a weighting coefficient corresponding to a grating point address (L*a*b* value) to a color prediction part 206, which calculates a final color predicted value (L*a*b*) from a color predicted value by a hierarchical neural net and a color predicted value by a hue division type linear model according to the weighting coefficient. Here, the weighting coefficient determined by the weighting coefficient determination part 207 is so calculated that continuous conversion is performed through table conversion, etc., in an input color space (CIELAB) by referring to the variation quantity of a colorimetric value for the variation quantity of the color material coordinate value of, for example, a color output device.
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