Abstract
The contributions of Von Kries adaptation and cortical surround inhibition to color constancy and color induction are studied by using a neural network model of visual processing from the retina to area V4. We propose that the large silent surrounds in V41 carry out a push-pull operation that enhances or diminishes cone-specific contrast. The network does not explicitly estimate the illuminant spectrum nor make assumptions about the mathematical properties of illuminant-reflectance products. Using center-surround and Mondrian stimuli, we demonstrate that adaptation and contrast calculations cooperate to produce a broad range of color constancy and color induction behavior. Cone-specific contrast calculations account for spatial context effects, while adaptation accounts for luminance effects.2 The relative contributions of adaptation and contrast to color perception depend on the color and luminance proper ties of the stimulus.
© 1992 Optical Society of America
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