Optical Illusions

[MagicMtnDan]

http://www.lesjones.com/www/images/posts/shadowbox.gif
He really couldn't believe squares A and B were the same color. So he convinced himself of it by using Photoshop's eyedropper to sample the colors. He decided to remove the squares from the surrounding picture. Here they are with the adjacent squares:
http://www.lesjones.com/www/images/posts/shadowbox1.gif
They still looked like different colors to him, so he took out the surrounding squares. Now you can finally see that they're the same color. That is one heck of an illusion.
http://www.lesjones.com/www/images/posts/shadowbox2.gif

[Phat Matt]

Here is another one. Believe it or not, there is actually a parked car in this picture. :D
http://giveme.freewebspace.com/images/findthec.jpg

[Redwing247]

Where??????

[Phat Matt]

This one jacks with your eyes.
http://salvia.blogs.sapo.pt/arquivo/optical_illusion_rotating-circles1.gif

[Phat Matt]

http://www.artshopua.com/imageproduct/845/Fine_Digital_Art_Optical_illusion_fine_art_print_b .jpg

[Phat Matt]

http://nudnik.ru/img/illusion.jpg

[buzzaro]

the part about that illusion that really screws you up is the squares that are 1/2 in the shadow of the cylinder are two different colors. Otherwise the one that is adjacent to B and diagonal from A would match them both since you can see it both in and out of the shadow.
I googled optical illusions and got this: http://www.michaelbach.de/ot/
No illusions of cars and boats but interesting anyhow