Crazy Optical Illusion

[heeshung]

http://web.mit.edu/persci/people/adelson/images/checkershadow/checkershadow_illusion4med.jpg

A and B are the same color and shade.

http://web.mit.edu/persci/people/adelso ... usion.html (http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html)

[PhilDernerJr]

You mean the letters or the box they are in?

[Mellyrose]

It supposedly the squares they are in. Click the "Proof" and "Explanation" links under the image (via the link provided). Still doesn't make too much sense to me. In theory maybe, but not digitally.

[heeshung]

The boxes the letters are in are the same color.

[Matt Molnar]

In theory maybe, but not digitally.

Yep they're the same. Me tested in PS.