关键词: M带小波变换, 广义高斯分布, 阈值, 子带自适应, 软阈值除噪

Abstract: This paper proposes an adaptive threshold estimation algorithm for image denoising based on M-band wavelet transform，which comes from the ideal of the optimal soft threshold using Generalized Guassian Distribution（GGD） model.In the threshold estimation，the influences of scale factor and suband length are considered.Denoise using soft threshold is simple and convenient.Experimental results of texture images denoising show that the proposed method outperforms other state-of-the-art techniques.

Key words: M-band wavelet transform, Generalized Guassian Distribution（GGD）, threshold, subband adaptive, soft threshold denoising