weipingmian.m

bcps嵌入 是一种很好的密写技术

function weipingmian(I)
G=I;
Q=I;
[a,b]=size(I);
for n=1:8
for i=1:a
    for j=1:b
        Q(i,j)=bitget(G(i,j),n);
    end
end
for i=1:a
    for j=1:b
        if Q(i,j)>=1 Q(i,j)=255;
        end
    end
end
figure
imshow(Q)
end