Optical Illusion

An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give a perception that does not tally with a physical measurement of the stimulus source.

There are three main types:
literal optical illusions that create images that are different from the objects that make them, physiological illusions that are the effects of excessive stimulation of a specific type (brightness, colour, size, position, tilt, movement), and cognitive illusions, the result of unconscious inferences. Pathological visual illusions arise from a pathological exaggeration in physiological visual perception mechanisms causing the aforementioned types of illusions.

Optical illusions are often classified into categories including the physical and the cognitive or perceptual, and contrasted with optical hallucinations. (Wikipedia)

 


 

Motion illusion

Motion illusion

Motion illusion

Café wall illusion

Café wall illusion

Café wall illusion

Perspective illusion

Perspective Illusion

Ponzo Illusion

Including Ponzo, Jastrow, Muller-Lye, Zollner, Poggendorff, Hering, Wundt, Orbison, Ehrenstein and Ames Room illusion.

Ebbinghaus illusion

Ebbinghaus illusion

Ebbinghaus illusion

Including Delboeuf illusion.


Checker shadow illusion

Checker shadow illusion

Checker shadow illusion

Including Chubb illusion and Contrast effect.

Munker-White illusion

Munker-White Illusion

Munker-White Illusion

Including Bezold effect.

Cornsweet illusion

Cornsweet Illusion

Cornsweet Illusion

Figure-ground illusion

Figure-ground illusion

Figure-ground illusion

Including Rubin vase-face illusion.


Scintillating grid illusion

Scintillating grid illusion

Scintillating grid illusion

Including Hermann grid and Scintillating grid illusion.

Illusory contours

Illusory contours

llusory contours

Including Kanizsa triangle and Ehrenstein illusion.

Neon colour spreading

Neon Colour Spreading

Neon Colour Spreading

Including Neon Color Spreading and Watercolor illusion.

Miscellaneous illusion

Miscellaneous illusion

Miscellaneous illusion

Including Pinna illusion and Leaning tower illusion.


Motion perception

Wagon-wheel effect

Motion perception

Including The aperture problem, Barberpole illusion, Roget's ‘Palisade’ Illusion and Wagon-wheel effect.

Beta movement and Phi phenomenon

Beta movement
Phi phenomenon

Phi phenomenon

Including Lilac chaser illusion.

After-image illusion

After-image illusion

After-image illusion

Including Motion after-effect.

McCollough effect

McCollough effect

McCollough effect

Including Filling-in illusion and Troxler's fading.


Spinning dancer

Spinning dancer

Spinning dancer

Including Bistable perception.

3D-illusion

3D-illusion

3D-illusion

Trompe l'oeil

Trompe l'oeil

Trompe l'oeil and Mural

Autostereogram

Autostereogram

Autostereogram


 

3D Illusion Art

3D street art (Pavement Art)

3D street art (Pavement Art)

3D street art
Pavement Art

Including "Street Painting", "Pavement Art", "Chalk Art" or "Sidewalk Art".

3D pencil art (Pencil 3D Illusion)

3D Pencil Art (Pencil 3D Illusion)

3D Pencil Art
Pencil 3D Illusion

3D computer art & graphics

3D computer art

3D computer art
3D computer graphics

3D artworks (3D crafts)

3D artworks

3D artworks
3D crafts



 


 

  Optical illusion video #1  Optical illusion video #2  10 Best Optical Illusions of 2014 
Optical illusion #1  Optical illusion #3  Optical illusion #4