Abstract
We develop a neural network model that instantiates color constancy and color categorization in a single unified framework. Previous models achieve similar effects but ignore important biological constraints. Color constancy in this model is achieved by a new application of the double opponent cells found in the “blobs” of the visual cortex. Color categorization emerges naturally, as a consequence of processing chromatic stimuli as vectors in a four-dimensional color space. A computer simulation of this model is subjected to the classic psychophysical tests that first uncovered these phenomena, and its response matches psychophysical results very closely.
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Dufort, P.A., Lumsden, C.J. Color categorization and color constancy in a neural network model of V4. Biol. Cybern. 65, 293–303 (1991). https://doi.org/10.1007/BF00206226
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DOI: https://doi.org/10.1007/BF00206226