Abstract

An analysis of the results of Land’s experiments with two-primary color projections has been carried out in terms of the known phenomena of object-color perception. It is shown that no new theory is required for the prediction of Land’s result that two-primary color projections can produce object-color perceptions of all hues; nor for his result that many choices of pairs of primaries yield substantially the same object-color perceptions. Land’s hypothesis that when the colors of the patches of light making up a scene are restricted to a one-dimensional variation of any sort, the observer usually perceives the objects in that scene as essentially without hue, is new; several special cases of it are supported by previous work as well as Land’s. This hypothesis deserves the serious attention of research workers in object-color perception.

© 1960 Optical Society of America

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Color Perception and the Land Two-Color Projections

Richard Belsey
J. Opt. Soc. Am. 54(4) 529-531 (1964)

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