Colorimetric color matching based on new two-constant theory

摘要

A concept of new two-constant of colorant is introduced based on the Kubelka-Munk theory, and new two-constant theory for color matching is put forward in this paper. The basic equations used in computer color matching are given in matrix form. Algorithm for match to the tristimulus values is developed based on the new two-constant theory. This algorithm is suitable for single-constant theory as well as new two-constant theory. The experimental results show that the sample according to the recipe predicted by single-constant theory has larger color difference against for the standard although the color difference predicted by single-constant theory may be very small, that the recipes predicted by new two-constant theory are closer to the actual recipes of the standard than the recipes predicted by single-constant theory, and that the sample according to the recipe predicted by new two-constant theory has smaller color difference against for the standard than the sample according to the recipe predicted by single-constant theory. The experimental results show that the scattering of disperse dyes cannot be negligible, and that the recipes matching to textile colored by disperse dyes should be predicted by using of new two-constant theory.