Isamu Motoyoshi studied relationships between image statistics and perceived surface qualities. Experiments manipulated image distributions and measured judgments such as lightness and gloss. The relation is useful for testing candidate visual computations, while a summary statistic does not uniquely determine the three-dimensional surface or its appearance under every configuration. [ref]
Image statistics and the perception of surface qualities by Isamu Motoyoshi and others. 2007, image-statistic manipulations and surface judgments
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