Optimization of wavelet threshold denoising based on edge detection
Ning Li, Jinyuan Zhang, Zhongliang Deng · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2017
Traditional wavelet threshold denoising algorithm is insufficient for the preservation of edge detail information and the separation of noise. In this paper, proposed the optimization of wavelet threshold denoising method based on edge detection, which to process the edge image obtained by the wavelet edge detection algorithm, and fuse the smoothing image produced by the improved threshold function model. Experimental results show that compared with the traditional wavelet threshold denoising method, this algorithm effectively preserves the edge information of the image and remove the noise, also improved signal to noise ratio obviously