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Opponent After-images

The nature of our visual system allows us to sometimes see "after-images" which appear once the original stimuli are removed. In the following demonstration, you will see that the colors in after-images are usually the opposite (complementary) colors of the original. 

Instructions: Stare at the black spot in the center of the four colored squares for about 30 seconds. Then scroll down and move your gaze to the black spot in the uniform white area. Note the colors of the afterimages relative to the colors of the original stimuli. Did they appear different?

Stare at the dot for 30 seconds, then scroll down

Back to Optical Illusions

Other Illusions:
Blind Spots
Blink Effect
Bordering
Chromatic Adaptation
Chromatic Adaptation
Color Blindness
Crispening
Dither Dots
Dithering
Fill Patterns
Opponent After-images
Optical Art
Shape Contrast
Simultaneous Contrast
Simultaneous Contrast
Value Contrast

Other fun stuff:
Free 3D Screensavers
Color Playground
Dimensions of Color
3D Color Puzzle

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