List of optical illusions

List of optical illusions

Name	Example 1	Example 2	Description/Remarks
Afterimage illusion
Afterimage on empty shape (also known as color dove illusion)			An afterimage or ghost image is an optical illusion that refers to an image continuing to appear in one's vision after the exposure to the original image has ceased.
Ambiguous image			This type of illusions is designed to exploit graphical similarities.
Ames room illusion
Ames trapezoid window illusion			An Ames room is a distorted room that is used to create an optical illusion.
ASCII stereogram
Autokinesis visual illusion
Autokinetic effect
Autostereogram			An autostereogram is a single-image stereogram (SIS), designed to create the visual illusion of a three-dimensional (3D) scene from a two-dimensional image in the human brain.
Barberpole illusion			The barber pole illusion is a visual illusion that reveals biases in the processing of visual motion in the human brain.
Benham's top
Beta movement
Bezold Effect
Blivet
Café wall illusion
Catoptric cistula
Chubb illusion
Color constancy
Color Phi phenomenon
Contingent perceptual aftereffect
Convergence micropsia
Cornsweet illusion
Delboeuf illusion
Disappearing Model
Ebbinghaus illusion
Ehrenstein illusion			The Ehrenstein illusion is an optical illusion studied by the German psychologist Walter Ehrenstein in which the sides of a square placed inside a pattern of concentric circles take an apparent curved shape.
Fechner color
Figure-ground (perception)
Filling-in
Flash lag illusion
Forced perspective
Fraser spiral illusion
Gravity hill
Grid illusion
Hering illusion
Hollow-Face illusion			The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face.
Hybrid image			A Hybrid Image is an optical illusion developed at MIT in which an image can be interpreted in one of two different ways depending on viewing distance.
Illusory contours			Illusory contours or subjective contours are a form of visual illusion where contours are perceived without a luminance or color change across the contour.
Illusory motion
Impossible object
Irradiation illusion
Isometric illusion			An isometric illusion (also called an ambiguous figure or inside/outside illusion) is a type of optical illusion, specifically one due to multistable perception.
Jastrow illusion			The Jastrow illusion is an optical illusion discovered by the American psychologist Joseph Jastrow in 1889.
Kanizsa triangle			The Kanizsa triangle is an optical illusion first described by the Italian psychologist Gaetano Kanizsa in 1955. It is a triangle formed of illusory contours.
Leaning tower illusion			The Leaning Tower Illusion is an optical illusion that presents two identical images of the Leaning Tower of Pisa side by side.
Lilac chaser			Lilac chaser is a visual illusion, also known as the Pac-Man illusion.
Liquid crystal shutter glasses
Mach bands			Mach bands is an optical illusion named after the physicist Ernst Mach.
Magic Eye
McCollough effect
Missing square puzzle			The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures.
Moon illusion			The Moon illusion is an optical illusion in which the Moon appears larger near the horizon than it does while higher up in the sky.
Motion aftereffect
Motion illusion
Müller-Lyer illusion			The Müller-Lyer illusion is an optical illusion consisting of a stylized arrow.
Multistability
Musion Eyeliner
Necker cube illusion			The Necker Cube is an optical illusion first published in 1832 by Swiss crystallographer Louis Albert Necker.
Necker Cube
Numerosity adaptation effect
Orbison illusion			The Orbison illusion is an optical illusion that was first described by the psychologist Roy Orbison in 1939.
Penrose stairs
Penrose triangle
Pepper's ghost	File:ToT PeppersGhost.jpg
Perceived visual angle
Peripheral drift illusion
Phantogram			Phantograms, also known as Phantaglyphs, Op-Ups, free-standing anaglyphs, levitated images, and book anaglyphs, are a form of optical illusion.
Phi phenomenon
Poggendorff illusion
Poiuyt
Ponzo illusion
Rubin vase	File:Rubin2.jpg
Same color
Sander illusion
Silencing			Silencing is an illusion in which a set of objects that change in luminance, hue, size, or shape appears to stop changing when it moves.
Size-weight illusion			The size-weight illusion is also known as the Charpentier illusion (or Charpentier-Koseleff illusion).
Stroboscopic effect
Swept-plane display
Ternus illusion
Thaumatrope			A thaumatrope is a toy that was popular in Victorian times.
The Spinning Dancer
Trompe-l'œil
Troxler's fading
Vertical–horizontal illusion
Wagon-wheel effect
White's illusion
Wundt illusion
Zoetrope
Zöllner illusion			The Zöllner illusion is a classic optical illusion named after its discoverer, German astrophysicist Johann Karl Friedrich Zöllner.

See also

• Adaptation (eye)
• Alice in Wonderland syndrome
• Auditory illusion
• Barber's pole
• Camouflage
• Contingent perceptual aftereffect
• Contour rivalry
• Depth perception
• Emmert's law
• Entoptic phenomenon
• Forced perspective - application used in film and architecture to create the illusion of larger, more distant objects.
• Gestalt psychology
• Gravity hill
• Infinity pool
• Kinetic depth effect
• Mirage
• Multistable perception
• Op Art
• Trompe l'oeil
• Visual reorientation illusions

External links

• Optical Illusions Types & Related Images
• Optical Illusions & Visual Phenomena by Michael Bach
• Optical Illusions Database by Mighty Optical Illusions
• Optical illusions and perception paradoxes by Archimedes Lab
• http://ilusaodeotica.com hundreds of optical illusions
• Project LITE Atlas of Visual Phenomena
• Akiyoshi's illusion pages Professor Akiyoshi KITAOKA's anomalous motion illusions
• Spiral Or Not? by Enrique Zeleny, Wolfram Demonstrations Project
• Magical Optical Illusions by Rangki
• Hunch Optical Illusions by Hunch