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The dress. The dress was a 2015 online viral phenomenon centred on a photograph of a dress. Viewers disagreed on whether the dress was blue and black, or white and gold. The phenomenon revealed differences in human colour perception and became the subject of scientific investigations into neuroscience and vision science.
Any kind of grid that deceives a person's vision. The two most common types of grid illusions are the Hermann grid illusion (1870) and the scintillating grid illusion (1994). The first is characterized by "ghostlike" grey blobs perceived at the intersections of a white (or light-colored) grid on a black background.
Chromostereopsis. Blue–red contrast demonstrating depth perception effects. 3 Layers of depths "Rivers, Valleys & Mountains". Chromostereopsis is a visual illusion whereby the impression of depth is conveyed in two-dimensional color images, usually of red–blue or red–green colors, but can also be perceived with red–grey or blue–grey ...
Optical illusion is also used in film by the technique of forced perspective. Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.
Checker shadow illusion. The regions marked A and B are the same shade of gray. A region of the same shade has been drawn connecting A and B. The checker shadow illusion is an optical illusion published by Edward H. Adelson, professor of vision science at MIT, in 1995. [1]
Blue circles replace the intersecting blue lines, especially when viewed from a distance. Neon color spreading (also referred to as neon-like color spreading) is an optical illusion in the category of transparency effects, characterized by fluid borders between the edges of a colored object and the background in the presence of black lines.
The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.
Ames room. Photograph of two adults standing in an Ames room, apparently with a significant difference in size. An Ames room is a distorted room that creates an optical illusion. Likely influenced by the writings of Hermann Helmholtz, [1] it was invented by American scientist Adelbert Ames Jr. in 1946, [2] and constructed in the following year.