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The principles of color matching and trichromacy, explaining how the human eye distinguishes colors based on the absorption of light by cone cells. The indistinguishability of spectral distributions, scale invariance, additivity of matches, and the concept of trichromacy. It also mentions the standard deviation of receptor response differences and provides references to natural reflectance spectra.
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Midget ganglion cells (P cells)
Small bistratified ganglion cells (K cells)
Parasol ganglion cells (M cells)
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Trichromacy
there always exist three constants, c 1 (^) , c and c 2 3 ,
such that
n º c n 1 1 (^) + c n 2 2 (^) + c n 3 3
These three constants are obtained by solving the three equations:
R º c R 1 1 (^) + c R 2 2 (^) + c R 3 3
G º c G 1 1 (^) + c G 2 2 (^) + c G 3 3
B º c B 1 1 (^) + c B 2 2 (^) + c B 3 3
S = squirrel monkey F = frog G = grey squirrel T = tree shrew
Regan et al. (2001)