A Study of Relationship Between Color Inconstancy Level and CIELAB Color Coordinates

I n commercial point of view, it is of great interest to find colors with high color constancy level. Color constancy as a relatively property of object’s appearance could be affected by different factors. In this article, the color inconstancy index (CMCCON02) and the color coordinates were calculated for 1269 samples of Munsell at CIEL*c*h? color system to study any correlations. The corresponding color was determined under four illuminants A, TL84, and a white LED as well as an equal energy spectrum. The results showed that the variation of hue angle and chroma makes more sensible effect on the color inconstancy index CMCCON02 than the lightness. In addition, a specific proportional change in spectral reflectance curve between low and high wavelength limits makes the color to be more inconstant. Besides, the results showed that color inconstancy is depended primarily on the type of color and used illuminant pair.