Computational theory of color constancy

Land and McCann (1971) came to the conclusion that color perception involves structures of the retina as well as the visual cortex. On the basis of these experiments, Land and McCann developed a computational theory of color constancy, the retinex theory. Land later developed additional versions of his retinex theory. The retinex theory of color vision is discussed in detail in Chapter 7. 

In summary, with this book, we have made a step toward a better understanding of a computational theory of color constancy. The main question, which algorithm is used by the human vision system, however, is still unsolved. In the future, noninvasive techniques that help to visualize the workings of the human brain in combination with additional psychophysical experiments may one day lead to the actual algorithm used by the visual system. 

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