Color Spaces
Color input is processed at every stage of the nervous system, starting from the retina, and the experience of color is affected by numerous contextual and historical factors. Nevertheless, in broad strokes we can describe a color by three numbers. A common trope in science and math is that if we can describe an object by a set of numbers, we can think of these numbers as its coordinates in an abstract space, with each point in the space corresponding to a different object, and we can study the geometry of the space
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