Ok, maybe all of you have seen al of these. I had seen the first two before but the last one I thought was prety cool.

http://www.echalk.co.uk/amusements/OpticalIllusions/colourPerception/colourPerception.html

Thanks for that one.

The first 2 you can see if you concentrate, but the 3rd is a real surprise.

I've been doing some research in to the 3rd illusion. It started when I was taking a closer look at subderma veins. Then I started noticing other anomolies. Now I'm taking a much closer look into computer 'perception' vs. human perception. If you've ever done nitty-gritty pixel (sprite) art, chances are you are already aware of some of the tricks involved.

Fascinating stuff.

yup, that 3rd one is a doozy. i've got friends who post this sort of thing every once in a while, but i'd not seen that 3rd one before. if i can ever organize all my bookmarks, and find those other links, i'll post them :)

Craig