![]() ![]() Gamma correction is, in the simplest cases, defined by the following power-law expression: Gamma correction or gamma is a nonlinear operation used to encode and decode luminance or tristimulus values in video or still image systems. ![]() ![]() The effect of gamma correction on an image: The original image was taken to varying powers, showing that powers larger than 1 make the shadows darker, while powers smaller than 1 make dark regions lighter. ![]()
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