Cornsweet illusion

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English

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English Wikipedia has an article on:
Wikipedia
Cornsweet illusion. The left part of the picture seems to be darker than the right one, though in fact they have the same brightness.

Etymology

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It was described in detail by Tom N. Cornsweet in the late 1960s.

Noun

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Cornsweet illusion (plural Cornsweet illusions)

  1. An optical illusion where an edge between regions of the same shade causes them to be perceived as different shades.
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