Device for creating color conversion look-up table, method and program for creating color conversion look-up table

摘要

PROBLEM TO BE SOLVED: To make gradation which is realized by a color conversion parameter to be better.SOLUTION: A color conversion parameter creation device according to the present invention being the color conversion parameter creation device which is used in color conversion processing converting an input image signal value to a plurality of kinds of actual color material values comprises: calculation means that calculates an evaluation value of the color conversion parameter using a virtual color material value obtained by converting the actual color material value; and modification means that modifies the color conversion parameter on the basis of the evaluation value, and the virtual color material value is an output value of n types of virtual color materials corresponding to a logarithm of a spectral reflection factor in each block divided when the spectral reflection factor of the actual color material is divided into n blocks (n is an integer being more than or equal to 3).SELECTED DRAWING: Figure 11