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History
Ewald Hering
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Karl Ewald Konstantin Hering was a German physiologist who did much research in color vision, binocular perception, eye movements, and hyperacuity. He proposed opponent color theory in 1892.
Ewald Hering
Ewald Hering
Ewald Hering's model of how a Vernier acuity stimulus is coded by a receptor array. Receptors marked c signal a different position code along the hori
Ewald Hering's model of how a Vernier acuity stimulus is coded by a receptor array. Receptors marked c signal a different position code along the horizontal direction from either the position a code or the position b code.
Color vision
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Color vision, a feature of visual perception, is an ability to perceive differences between light composed of different frequencies independently of light intensity.
Colorless, green, and red photographic filters as imaged by camera
Colorless, green, and red photographic filters as imaged by camera