tuxiangzengqiang.m

数字图像处理

kk=imread('ziji1.jpg');
X=rgb2gray(kk);
figure(1);
imshow(X,[]);
title('增强后的图像');
[c,l]=wavedec2(X,2,'db5');
Csize=size(c);
for i=1:Csize(2)
    if(c(i)>300)
        c(i)=2*c(i);
    else
        c(i)=0.5*c(i);
    end
end

    X1=waverec2(c,l,'db5');
    X1=double(X1);
    figure(2);
    imshow(X1,[]);
    title('原始的图像');