Stereogram
Stereo (also known as "three-dimensional map" or "three-dimensional painting") is a kind of can make people feel the three-dimensional effect of the plane image. Observation of such images usually requires a special method or by means of equipment. The stereogram was originally used to represent a pair of images that need to be viewed by a stereoscopic view. Now the stereograms also include anaglyph and autostereogram. The stereogram was first discovered by Charles Wheatstone in 1838, and he gave an explanation of binocular vision at the same time, which led him to construct a device consisting of prisms and mirrors, so that people could observe from a pair of two-dimensional images To three-dimensional effect. With the development of autostereogram technology on the computer, the stereogram was re-popular. In the autostereogram, the three-dimensional effect is hidden in a single two-dimensional image, and the observer can observe the stereoscopic image only after focusing the eye correctly. Magic Eye series is a popular example. Magic Eye will be called autostereogram as a three-dimensional map, which makes many people think that the three-dimensional map is autostereogram synonyms. ...