Here is an image of a random-dot stereogram that I made in MS Paint in about a minute:Įnter your email address to follow this blog and receive notifications of new posts by email. They are probably the easiest kinds of stereograms to generate. Let’s now return to random dot stereograms. Since they are not focused on the same element, but the elements are physically the same, the brain is tricked into triangulating distance, resulting in the perception of depth. What one is doing when one views the tiling above stereoscopically, is that the left eye is seeing one element of the pattern while the right is seeing another. how you would look at a magic-eye image), then one can immediately tell that from back to front, we have black, orange then pink, indicating the differences in spacing. However, if one looks at the image stereoscopically (i.e. black, pink or orange) are spaced further apart. If one looks at the image normally, it takes a while to figure out which tiles (i.e. In fact, our depth perception is vastly superior to our ability to discern lateral displacements. This allows us to triangulate, and our brain turns this information into depth. Humans are particularly adept at depth perception due to the fact that we have two eyes that are horizontally separated from one another. Stereograms were discovered in 1959 by Bela Julesz, a scientist at Bells Labs, who invented random dot stereograms to study depth perception. Magic-eye images are actually part of a much larger set of images known as stereograms.
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