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 AmericaFull Article | PDF Article
OSA Recommended Articles
J. Opt. Soc. Am. 54(4) 529-531 (1964)
D. E. Pearson, C. B. Rubinstein, and G. J. Spivack
J. Opt. Soc. Am. 59(5) 644-658 (1969)
R. M. Evans
J. Opt. Soc. Am. 33(11) 579-614 (1943)