Edward Adelson, Professor of Vision Science at MIT, has a classic example of this showing a checkerboard with a shadow cast across it. There are 2 squares that are _exactly_ the same color but one looks very much lighter than the other.
http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html >From the explanation - "The visual system is not very good at being a physical light meter, but that is not its purpose. The important task is to break the image information down into meaningful components, and thereby perceive the nature of the objects in view." . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Posted from the new ixda.org http://www.ixda.org/discuss?post=29844 ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
