Surface color perception under two illuminants: the second illuminant reduces color constancy

摘要: This study investigates color perception in a scene with two different illuminants. The illuminants, opposite corners, simultaneously shine on (simulated) an opaque dividing wall, which controls how much of the is illuminated by each source. In first experiment, height wall was varied. changed amount illuminant reaching objects side wall. Results showed that degree constancy decreased when region one had cues to both suggesting from second are detrimental constancy. later found improve specular highlight were altered be consistent illuminant. corroborates influence highlights surface perception, and suggests reduced experiment due inconsistent, though physically correct,