Lightness Perception and Lightness Illusions

interactive movies based on a paper by Edward H. Adelson

The following demonstrations are in Macromedia Flash formats, and therefore suitable for classroom teaching:  

To download: Mac users, press and hold mouse button. PC users, press right mouse button.
Click on the link to view.


Simultaneous Contrast Illusion
[ Flash - (69 kb) ]

Vasarely Illusion
[ Flash - (79 kb) ]

Craik-Obrien-Cornsweet Effect

[ Flash - 102 kb) ]

Knill and Kersten's Illusion
[ Flash - (86 kb) ]

The Koffka Ring
[ Flash - (74 kb) ]

Impossible Steps
[ Flash
- (116 kb) ]

Corrugated Plaid
[ Flash - (101 kb) ]

Haze Illusion
[ Flash -  (142 kb) ]

White's Illusion
[ Flash -  (106 kb)]

Criss-Cross Illusion
[ Flash -  (75 kb) ]

The Snake Illusion
[ Flash - (116 kb) ]



 

 

 

 

 

 

 

 

 

 

 

Questions and comments about this web site
can be directed to John-Elmer Canfield: canfield@mit.edu