I love these stereograms :) I have never been able to do them the way you're supposed to, however. The image is supposed to pop out at you. The way I do it, the image is an indentation.
Stereogram by 3Dimka: Winer hunter. Tags: wolf, trees, snow, animal, dog, hidden 3D picture (SIRDS)
After Effects & Photoshop tutorial: Create cosmic glows and lighting effects with particles - Digital Arts
DESIGN // AE Tutorials & Resources
Mandelbrot Fractals: Hunting the Hidden Dimension | Markosun's Blog More
3d hidden pictures | Indasoftware Stereogram Gallery : Starfish : Stereogram Images, Games ...
Stereograms to see hidden 3D images (30 pics)
3-D hidden eye (need to click and enlarge image to see it properly)
Lucas Simoes Burned Photographs | YOURE NOT HUMAN
Drawing & Painting
Can you see the horse???
The "i" and "h" are interlocking to make the effect that the "i" is hiding.