Effect Of Initial Visual Information On Construction Of A Space Perception An On The Color Constancy

Abstract

We always perceive the color of an object correctly even if the color of illumination changes, which is called the color constancy. According to the Recognized Visual Space of Illumination (RVSI) developed by Ikeda and his colleagues the color constancy takes place only when the observer recognizes a space where the object is placed. This paper investigated how the space recognition was constructed and the color constancy took place by introducing clues, which we call the initial visual information IVI, one by one in a test room without illumination. The uniform white board at the back of the test room was observed through a large window from a subject room. The amount of whiteness of the wall was measured by the elementary color naming. The wall appeared a mere black paper filling the window if no object was placed in front of the board. But it gradually became whiter when the number of objects was increased and the white board began to appear white to indicate a gradual construction of a space perception or RVSI with increase of the IVI.