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On a basis of Retinex and YIQ color space, a new approach of color image enhancement is presented in this paper. The original image in the RGB color space is converted to the YIQ color space, and the multi-scale Retinex (MSR) algorithm is introduced to enhance its Y-component. The two-dimensional discrete Fourier transform (DFT) is employed to accelerate information processing for MSR, while both...
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