A neurophysiology-inspired steady-state color appearance model
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Updated: Jun 24, 2026
04:43
Visualizing Visual Adaptation
Published on: April 24, 2017
1Department of Computer Science, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, UK. kunkel@cs.bris.ac.uk
Abstract:
Color appearance models predict how a patch of color is perceived under specific illumination. We derive a new model based on neuroscientific insights, leading to a simpler explanation of color appearance while at the same time predicting existing psychophysical data with similar accuracy for chroma and higher accuracy for lightness and hue.
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01:24Color Vision
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
01:12Perceptual Constancy
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...