自适应局部降噪滤波器.1页.doc

自适应局部降噪滤波器在MATLAB中输入程序如下：block=3;I=imread(VLSI.PNG);I=rgb2gray(I);subplot(1,2,1);imshow(I);M,N=size(I);NI=zeros(M,N);temp=;for k=1:M temp=temp I(k,:);endEta_total=var(temp);for k=(block+1)/2:M-(block-1)/2 for l=(block+1)/2:N-(block-1)/2 temp=; for m=1:block temp=temp I(k+m-(block+1)/2,(l-(block-1)/2):(l+(block-1)/2); end local_mean=mean(temp); local_var=var(temp); if local_var=0