www.pudn.com > enhancement+fusing.rar > Wavelet_enhancement.m

  
clear; 
load woman; 
 
subplot(121); 
 
image(X); 
 
colormap(map); 
 
title('原始图象'); 
 
axis square;          % 画出原图象 
 
  
 
[c,s]=wavedec2(X,2,'sym4');     % 进行二层小波分解 
 
sizec=size(c);                  % 处理分解系数，突出轮廓，弱化细节 
  
for I =1:sizec(2) 
 
if(c( I )>350) 
 
  c( I )=2*c( I ); 
 
else 
 
  c( I )=0.5*c( I ); 
 
end 
 
end 
 
xx=waverec2(c,s,'sym4');    % 分解系数重构 
 
subplot(122); 
 
image(xx); 
 
title('增强图象') 
 
axis square;          % 画出增强图像