Testing the performance of CIECAM02 model using two distinct glossinesses of color printing atlas

Psychophysical experiments have been carried out in which the color appearance of high-gloss and low-gloss color printing atlases was assessed using a magnitude estimation method under three different light sources. A linearity fitting algorithm by the method of least squares was applied to evaluate the correlation between visual experiment data and predicted results through the CIECAM02 model of different glossinesses of color printing atlases. The research result has shown that there was a good correlation between mean visual results and predicted results for hue and lightness of two distinct glossinesses of the color printing atlas. The correlations of hue and lightness between visual experiment data and predicted results were the best and the second best, respectively, under the same light source. Colorfulness was the worst. Meanwhile, high-gloss and low-gloss color printing atlases have been estimated and compared in the viewing conditions of 0°/45°. The result has indicated that the hue of the color printing atlas could not be affected by gloss levels under three light sources. Colorfulness of the color printing atlas almost could not be affected by gloss levels under D65 and TL84 light sources. Lightness of the color printing atlas could be affected by gloss levels under a TL84 light source.