surethresh2.m

自己编写的小波去噪原程序,使用的是轶值降噪的方法

function [x,thresh] = SUREThresh2(y)
%
%%%%%%It's My Own Function!!!
%
% SUREThresh2 -- Adaptive Threshold Selection Using Principle of SURE for 2-D Signal
%  Usage 
%    thresh = SUREThresh2(y)
%  Inputs 
%    y        2-d Noisy Data with Std. Deviation = 1
%  Outputs 
%    x        Estimate of mean vector
%    thresh   Threshold used
%
%  Description
%    SURE referes to Stein's Unbiased Risk Estimate.
%
	thresh = ValSUREThresh2(y);
	x      = SoftThresh(y,thresh);