A stereogram is an optical phantasm that creates the notion of a three-dimensional picture when considered accurately. Stereograms are usually created by combining two barely completely different photographs, that are then considered by a stereoscope or through the use of the free-viewing method. When considered accurately, the 2 photographs merge to create a single three-dimensional picture.
Stereograms have been used for hundreds of years to create quite a lot of optical illusions and results. They’ve additionally been utilized in scientific analysis to check the human visible system. In recent times, stereograms have change into more and more in style as a type of leisure, and there are actually many web sites and books that present free stereograms for viewing.
