Brightness Perception

Some references:
Adelson, E. H. (1993) Perceptual organization and the judgment of brightness. Science 262: 2042-2044

Adelson's work involves diamond shaped patterns such as those shown below.

Adelson's definitions:

Adelson's Figure 2a. The diamonds have the same physical reflectance but appear to have different brightness. A 35% perceived difference was found.

My own figure which has the diamonds aligned. The effect seems smaller and the percept of a transparent filter is absent.

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© 1995 Lance Hahn (