Color Vision Model
The cones are represented twice just for convenience. They are colored only for aesthetic & identification purposes. These color do not represent the color of the cones or the colors to which they are sensitive.
This diagram shows how the cone signals combine to form the spectrally opponent (chromatic) and spectrally non-opponent (luminance) channels.
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Spectral absorbance of cone photopigments
Trichromatic Theory
Opponent processes theory
Luminance channel
Chromatic channels
Table of Contents
Subject Index
Table of Contents [When not using frames]