While doing some research I came across this intriguing phenomena – some of you may already have seen it. It’s a composite of manipulating three ways the visual system of the human eye works. Take a look at the following checker board image. Would you say check A and check B are the same colour?

If you said yes, you would be correct. If you said no, well you’re eyesight works as it should. To see an explanation go here.

Here’s the proof:

©1995, Edward H. Adelson. These checkershadow images may be reproduced and distributed freely.

Need more proof?

These are screen shots I took of check A, check B, the light coloured check on the far left, bottom (in shadow) and the light coloured check on the far right, bottom (not in shadow)

Try it yourself!

🙂

Sandy