Abstract

The spectral power distribution reaching the eye from an object varies with the spectral output of the illumination source and the spectral reflectance of the object. If color vision is to serve in the identification of objects, it is desirable to have a system that responds to the spectral reflectance of the object, a stable attribute, independent of the spectral characteristics of the illumination. The significant stability of object color appearance despite changes in illumination conditions is commonly referred to as color constancy.

© 1992 Optical Society of America