Magic Eye image of the week with answer. http://www.magiceye.com/3dfun/stwkdisp.shtml
I can see all the Magic Eye pictures (although half of the time I can’t make out exactly what the figure is supposed to be). I can’t see the shark normally in the gif movie. In my browser, I think the frame rate is too high. But if I cross my eyes I can see the hollowed-out version. When I first saw the shark gif years ago, I had no trouble seeing it in 3-d.
ISTR an article in Scientific American decades ago that said if you observe at an amputee in an Ames room walking back and forth, your perception of the illusion is reduced. The thought was that the slight anxiety you experience was somehow the cause.
As for Magic Eye, this is from one of my posts from 12 years ago! :eek: Maybe it’ll help.
Here’s a simplified pattern that illustrates the Magic Eye principle. I wonder if those who can’t see Magic Eye can see the depth in this:
N N N N N N N
F F F F F F
E E E E E E E
A A A A A A
A A A A A A A
R R R R R R
R R R R R R R
Merge the repeated letters with slightly crossed eyes (try looking at the tip of your nose), and you will see the word “FAR” an inch or two in front of the screen and the word “NEAR” farther away. You can verify this by moving your finger to a position where you see it as one finger. It’s a rather striking effect.
The Magic Eye technique is to un-cross your eyes by using techniques described earlier in this thread. Personally I find it helps doing that by bowing your head while keeping your eyes on the image until it’s at the top edge of your field of vision. If you succeed, you’ll see that the above pattern now has the word “FAR” farther away than the word “NEAR”.