Checker Shadow Illusion

Color, Shadow, Video 5 June 2012 0 Comments

The checker shadow illusion was originally published by MIT professor Edward H. Adelson in 1995.  It presents two squares that are the same shade but appear to be quite different from one another.  The video below demonstrates the illusion as a light square in a shadow is moved to reveal that it is the same shade as a darker square outside of the shadow.

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