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How do we see so many colors on a digital screen?
How can we possibly perceive a world of colors from just red, green, and blue, the colors of lights in TV, computer, and phone screens? The answer has to do with the way our visual system is set up: We have three different kinds of cones in the retina which respond most to what we…
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What is color (in vision)?
Roses are red, Violets are blue, And you probably think That the sky is blue too. Color, however, exists only in the mind: Color is our experience that maps onto the physical luminance properties of visible light and visible-light reflectance properties of objects. Psychologists call this color perception, to recognize that color is more a property…