will someone find an error regard this code? because my watermaked modifed/inserted only left side of host image..
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clc;
clear all;
hi=imread('Lena.tif');
[m,n]=size(hi);
area=m*n*8;
hi=dec2bin(hi); hi;
wi=imread('cameraman (2).tif');
b=imresize(wi,1/4);
imwrite(b,'wm.tif');
wi=imread('wm.tif');
[x,y]=size(wi);
wm=dec2bin(wi);
wlength=x*y*8;
i=1; j=1; k=1;
cnt=0;
while i<area
cnt=cnt+1;
if cnt>wlength;
break;
end
hi(i,8)=wm(j,k);
k=k+1;
if k>8
k=1;
j=j+1;
end
i=i+1;
end
h1=bin2dec(hi);
[u,v]=size(h1);
h1=reshape(h1,m,n);
h1=uint8(h1);
wmm(1:m,1:n)=h1(1:m,1:n);
imshow(wmm);
imwrite(wmm,'w_image.tif');
imshow(wmm);
7 Kommentare
Guillaume
am 18 Sep. 2014
Sorry I made a typo the third line should have read:
cameraman = uint8(repmat((0:255)', 1, 256));
I've edited the comment to correct the error.
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