Wolfram Demonstrations Project
8758

Kanizsa Polygon Illusion

We see a shape defined by the missing parts of the disks at its vertices. This optical contour illusion was found by the Italian psychologist Gaetano Kanizsa in 1955.

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"Kanizsa Polygon Illusion" from the Wolfram Demonstrations Project
 http://demonstrations.wolfram.com/KanizsaPolygonIllusion/
Contributed by: Michael Schreiber
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