According to the Ratio Principle of Lightness Constancy, the Perceived

question 55

Multiple Choice

According to the ratio principle of lightness constancy, the perceived lightness of a region is based on the:

• A) relative intensity of the illuminating light.
• B) absolute amount of light reflected from the region and its surround.
• C) difference in color between the region and its surround.
• D) relative amounts of light reflected from the region and its surround.

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