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Its really hard to come up with a good mathematical reasoning for color because color is not a simple vector quantity. Roughly saturation is more vivid. But in terms of a image vividity is used for a transformation that increases image contrast by adding saturation based on a convolution. In reality its really its not so easy to do this kind of analysis in ...


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How about this: use different greys under different backgrounds, painted white and black, so that the former appear the same, but not when they're against a neutral one. Let me know if these two sets of patches look the same on top of the black and white rows: Because what these patches look like on top of a neutral grey is depicted in this picture: I ...


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