1039049-

基于LSB的数字水印技术

clear all
I = imread('伪装图像.bmp');
[h w] = size(I);
subplot(3,3,1);
imshow(I);title('原图像512*512');
for k=1:8
    for i=1:h
        for j=1:w
         b1(i,j) = bitget(I(i,j),k);
        end
    end
    subplot(3,3,k+1);
    imshow(b1,[]);
    ind = num2str(k);imti = ['第',ind,'个位平面'];
    title(imti);
end