xiaobo.m

来自「MATLAB图象处理程序」· M 代码 · 共 22 行

obj = videoinput('X', 1);
set(obj, 'C:\Documents and Settings\lishurui\桌面\lena.bmp', 'input1')
save lena obj
load lena
load('lena', 'obj');


subplot(2,2,1);image(X);colormap(map);
title('原始图像')
axis square;
[c,s]=wavedec2(X,2,'sym4');
sizec=size(c);
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');
subplot(2,2,2);image(xx);
title('增强图像')