Contrast enhancement process is needed in the images in order to improve its visual quality. Starting from the point of spatial methods of image enhancement
Retinex-related methods are analyzed. Considering the defects of the Retinex algorithm
processing method based on luminance and Guassian function using IIR implementation are proposed in this paper. The simulation results prove that these measures can not only enhance the images
and can prevent grayish
keep color constancy and accelerate the processing speed.
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