I googled autostereograms to see how it works and it brought me to stereo imaging and no matter what I read online, I could not understand it so explain like im 5 please.
In: Biology
We see in 3 dimensions because our eyes give us two views of the same picture. Our brain can calculate how are far something is away based on how similar both eyes pictures are. (You can do that math on paper too, calculating the height of a triangle from the two angles and the distance between your eyes)
In a stereogram two pictures are printed, one for each eye, that Show the same scene from slightly different angles. So if look at it from the correct distance our brain will do it’s magic and calculate a 3D image from it. (If you manage to turn off your eyes natural focus on a point of the paper)
In a autostereogram they only give you one picture, and there is basically a hidden stereogram in it, that you can only see if you look at it from the correct distance and don’t focus your eyes on a single point.
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