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Checker shadow illusion

The regions marked A and B are the same shade of gray.
A region of the same shade has been drawn connecting A and B.

The checker shadow illusion is an optical illusion published by Edward H. Adelson, professor of vision science at MIT, in 1995.[1]

  1. ^ Adelson, Edward H. (2005). "Checkershadow Illusion". Perceptual Science Group. MIT. Retrieved 2007-04-21.

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