Michael Daniels

Mind Magician
 Explore great magic of the mind with
 psychologist and magician Michael Daniels 

Online and recent visitors

Same Color Illusion

Share this:  


Seeing is not believing!

You won't believe this, but squares A and B are exactly the same shade of grey!

Wikipedia Commons

To prove it, watch this amazing video!

About the Same Color Illusion

This amazing optical iIllusion was first published by Professor of Vision Science, Edward Adelson, in 1995.

The illusion works because the brain interprets square B as being in shadow. Also, because of the checker board pattern, the brain "knows" that square B must be light grey.

The visual system therefore compensates for the lack of light given off by square B (which is exactly the same as that for square A) by seeing square B as much lighter than it really is.

The extraordinary thing is that, even though we may understand this explanation, it is still almost impossible to see the two squares as being the same shade of grey.

For more information on this illusion, see this Wikipedia article.



 Join the conversation

 All rights reserved 
 We are not responsible for and do not endorse the content of external sites