A stereogram is an optical phantasm that creates the notion of a three-dimensional picture when seen accurately. Stereograms are sometimes created by combining two barely completely different photographs, that are then seen via a stereoscope or by utilizing the free-viewing approach. When seen accurately, the 2 photographs merge to create a single three-dimensional picture.
Stereograms have been used for hundreds of years to create a wide range of optical illusions and results. They’ve additionally been utilized in scientific analysis to review the human visible system. In recent times, stereograms have change into more and more fashionable as a type of leisure, and there at the moment are many web sites and books that present free stereograms for viewing.
