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METHOD OF DENOISING AND ENHANCING VIDEO IMAGE BASED ON RANDOM SPRAY RETINEX AND DEVICE UTILIZING SAME
METHOD OF DENOISING AND ENHANCING VIDEO IMAGE BASED ON RANDOM SPRAY RETINEX AND DEVICE UTILIZING SAME
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机译:基于随机喷涂视网膜和相同设备的视频图像降噪和增强方法
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摘要
The invention relates to a technical field of image processing and discloses a method of denoising and enhancing a video image based on random spray retinex. The method comprises: constructing a spray pixel point set, and adjusting and optimizing parameters related to random spray retinex processing, wherein the parameters comprise a count of spray sets and a count of pixel points; performing a random spray retinex processing on a video image on a basis of the adjusted and optimized parameters; performing a low-pass filter denoising processing and a fuzzy channel denoising processing on the video image that has been processed by the random spray retinex to acquire a brightness change calculation function; acquire according to the brightness change calculation function a brightness calculation function of an output image, and adopting the brightness calculation function to calculate brightness change values of three channels and to generate a local brightness estimation vector; combining three channels on a basis of the acquired local brightness estimation vector to acquire a denoised and enhanced video image. The present invention provides a brightness change calculation function capable of realizing effective denoising, greatly improving image resolution.
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