"gripping and hugely entertaining... difficult to put down."
- New Scientist

Checker shadow illusion in the real world

Professor Kitaoka spotted this wonderful real-world example of the checker shadow illusion. Tile B appears lighter in shade than tile A, yet when the tiles are take out of context (pic 3) we see that in fact A is lighter! Our vision system compensates for shadows, and interprets the colours as they would be without shadows because this is more useful to us.

checkershadow real floor

pic 1 - original

pic 2 - labelled

pic 3 - context removed

You are viewing the text version of this site.

To view the full version please install the Adobe Flash Player and ensure your web browser has JavaScript enabled.

Need help? check the requirements page.

Get Flash Player