On the Color Constancy of Vision

by Gerald Huth on May 31, 2005

The unique color constancy of the human visual process is explained by precise mid-band (green) wavelength interacting at a “geometrically-defined” point on the retina at 7 1/2 degrees of retinal angle. No matter how the optical spectrum incident on the eye changes, color is determined by a ratio of intensities on either side of this fixed point as Land predicted.

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