Experimental study of hue cancellation and its mechanism exploration

To research the distinctions between dichoptic color vision and naked-eye color vision in the human vision system, this study carried out psychophysical experiments to explore hue cancellation phenomena in both dichoptic and naked-eye visual conditions. The experimental results show that dichoptic hue cancellation (DHC) not only occurs in the red and green (R-G), yellow and blue (Y-B), and yellow-green and purple (YG-P) color directions in CIELAB space but also requires color desaturation. In naked-eye vision, a specific color for each color is capable of inducing hue cancellation. The experimental results imply that hue cancellation in naked-eye vision may be a complementary phenomenon. The process of viewing two hues to produce a third hue should be completed in the retina.