Cornsweet illusion
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/18/Cornsweet_illusion.svg/250px-Cornsweet_illusion.svg.png)
Etymology
[edit]It was described in detail by Tom N. Cornsweet in the late 1960s.
Noun
[edit]Cornsweet illusion (plural Cornsweet illusions)
- An optical illusion where an edge between regions of the same shade causes them to be perceived as different shades.