Wednesday, March 27, 2013

Kanizsa Triangle


No triangle drawn..!!!

Kanizsa Triangle

In the accompanying figure a white equilateral triangle is perceived...but in fact none is drawn. 
This effect is known as a subjective or illusory contour. 
Also, the nonexistent white triangle appears to be brighter than the surrounding area, but in fact it has the same brightness as the background.

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