A model for perceptual analysis of the proximal stimulus into common and residual components, earlier described in a series of papers by johansson and his co-workers for motion and space perception, is applied to colour perception. Though still premature, this application seems to make colour constancy a natural result of the analysis in the same way as size and form constancy is solved by johansson's vector analysis in the frame of reference of projective geometry. Applications of the model to land's mondrian experiments, to simultaneous contrast, and to the cornsweet-o'brien effect are outlined. The information from variations and invariances in reflected light (besides the geometrical projection) is discussed with reference to gibson's ecological optics.
Samenvatting