Optimization of color reproduction based on chromatic properties of multiple real observers

In modern color reproduction practices, a color reproduced by a RGB monitor matches its target color if they have the same color metric. Color metric systems are defined based on the standard observers and restricted conditions. For real observers who have different chromatic properties, the matched pair may invoke different color responses. In this paper, we analyzed the perceptual color biases in color imaging based on previous work on color and chromatic properties of human eyes. We then derived a numerical measure of such color biases from current CIE color system. By extending our previous work on relaxed color reproduction, we developed a customized color reproduction method to minimize color perceptual differences among multiple observers. Instead of creating the exact matched pairs to satisfy the standard observer, approximate duplications of target colors are produced to relaxed match the standard observe and the real observer by adjusting the control variables of visualization devices according to chromatic features of the real observer. The perceptions of these duplications are close to the targets when observed by both the real observer and the standard observer.