Uneven illumination in image acquisition process often have a serious impact on image processing. For the deficiency of traditional adaptive Gamma correction in the process of light correction, we present a method of continuous nonlinear Gamma correction. The proposed method has effective compensation for the highlights and shadows at same time, and a faster processing speed than other methods. Experiments show that the method can effectively solve the problem of the non-uniform illumination effects, and improve the quality of the image.
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