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.

To obtain more in-depth information click on one of the choices below.

Spectral absorbance of cone photopigments
Trichromatic Theory
Opponent processes theory
Luminance channel
Chromatic channels

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