Simultaneous color contrast in afterimage

Abstract

　The simultaneous color contrast SMCC was investigated by the afterimage. The color appearance was measured, by the elementary color naming, for the central patch in the afterimage, for the surrounding, and for the afterimage of the surrounding. The color of the after image of the central patch was same as the color of the surrounding. The relation of the hue of the afterimage of the central patch to the hue of the surrounding afterimage suggested that the SMCC in the afterimage is yielded by the chromatic adaptation to the illumination of the surrounding afterimage.