DeNoising.rar_denoising_小波去噪

% DeNoising:Contents v850 -- Tools for DeNoising Signals with White Gaussian Noise % % The tools in this directory implement the de-noising procedures % described in the articles of Donoho and Johnstone and collaborators. % % Noise Suppression Tools % % WaveShrink - Soft Threshold Shrinkage of Wavelet Coefficients % WPDeNoise - De-Noising in Best WP basis % CPDeNoise - De-Noising in Best CP basis % % ThreshCP - Cosine packet decomposition of a noisy signal, % Best Basis analysis, Thresholding in Best Basis % ThreshWP - Wavepacket decomposition of a noisy signal, % Best Basis analysis, Thresholding in Best Basis % ThreshWave - Denoising of 1-d signal with wavelet thresholding. % ThreshWave2 - Denoising of 2-d image with wavelet thresholding. % % CohWave - Denoising of signal contaminated with another signal using coherent % structures algorithm. % % IdealWavDenoise - Simulation of an Ideal Thresholding Applied to % Wavelet Coefficients. % TIDenoiseHard2 - Translation-Invariant Hard Wavelet Thresholding of Images. % TIDenoiseSoft2 - Translation-Invariant Soft Wavelet Thresholding of Images. % % Applying Thresholding to Many Scales % % MultiHybrid - Apply Shrinkage with level-dependent thresholding via SURE % MultiMAD - Apply Shrinkage with level-dependent Noise level estimation % MultiSURE - Apply Shrinkage with level-dependent thresholding via SURE % MultiVisu - Apply sqrt(2log(n)) Thresholding to Wavelet Coefficients % InvShrink - Apply Shrinkage with Exponentially Growing Threshold % % Setting Thresholds at a Single Scale % % HybridThresh - Modified SURE Threshold Selection % MinMaxThresh - Minimax-selected Threshold % SUREThresh - SURE Threshold Selection % ValSUREThresh - Value of SURE-selected Threshold % VisuThresh - Visually Best Threshold Selection % % Threshold Devices % % SoftThresh - Apply Soft Threshold % HardThresh - Apply Hard Threshold % % Pre-Conditioner % % NormNoise - Normalize signal to noise level 1 % % Utilities % % GWN - Generation of Gaussian White Noise % GWN2 - Generation of 2-D Gaussian White NNoise % GWNoisy - Addition of a Gaussian White Noise % GWNoisy2 - Addition of a 2D Gaussian White Noise % HT - Hard Threshold Applied to Wavelet Coefficients. % HT2 - Hard Threshold Applied to Image Wavelet Coefficients. % ST - Soft Threshold Applied to Wavelet Coefficients. % ST2 - Soft Threshold Applied to Wavelet Coefficients. % Wiener - Wiener filter. % Wiener - Wiener filter for images. % % % Part of Wavelab Version 850 % Built Tue Jan 3 13:20:39 EST 2006 % This is Copyrighted Material % For Copying permissions see COPYING.m % Comments? e-mail wavelab@stat.stanford.edu