Visual Tricks
These links now go to Optillusions - the site that seems to be the origin of the images.
 black_dots.jpg 21.88 KB |
 colours.gif 18.07 KB |
 ele.jpg 36.04 KB |
 fourdots.gif 4.28 KB |
 haze.jpg 16.78 KB |
 lines.jpg 26.70 KB |
 pic31123.jpg 31.66 KB |
Thumbnail page created by IrfanView