Same color illusion, also known as Adelson’s "Checker shadow illusion" or Checker shadow illusion or just Checker shadow, is a visual illusion. The squares A and B on the illusion are of the same color (or shade), although they seem not to be. You can check it out with an eyedropper in a graphic program. By moving a copied fragment of B with mouse you can even see live how the shade changes in front of your eyes (animation of this effect in WMV, AVI_XVID, SWF formats, as well as EXE file can be downloaded from this page). Prepared for Wikipedia by Adrian Pingstone in January 2004, based on the original created by Edward H. Adelson. ... Prepared for Wikipedia by Adrian Pingstone in January 2004, based on the original created by Edward H. Adelson. ... An optical illusion is any illusion that deceives the human visual system into perceiving something that is not present or incorrectly perceiving what is present. ...
"When interpreted as a 3-dimensional scene, our visual system immediately estimates a lighting vector and uses this to judge the property of the material." [quotation from this page]
It was first published by Ted Adelson in 1995. The original figure. Ted Adelson's explanation. 1995 (MCMXCV in Roman) was a common year starting on Sunday of the Gregorian calendar. ...
You can also see the illusion at [1] and [2] and [3]
Lilac chaser is a visual illusion, also known as Very cool illusion. ... A optical illusion is a type of illusion characterized by visually perceived images that are deceptive or misleading [1]. Information gathered by the eye is interpreted by the brain to give the perception that something is present when it is not. ...
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