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 photos, that are then considered by way of a stereoscope or through the use of the free-viewing approach. When considered accurately, the 2 photos 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 widespread as a type of leisure, and there at the moment are many web sites and books that present free stereograms for viewing.
