will someone find an error regard this code? because my watermaked modifed/inserted only left side of host image..

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SHALU SINGH 2014-9-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/155121-will-someone-find-an-error-regard-this-code-because-my-watermaked-modifed-inserted-only-left-side-o

评论： Guillaume 2014-9-18

在 MATLAB Online 中打开

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);

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SHALU SINGH 2014-9-18

编辑：SHALU SINGH 2014-9-18

there is an errors like, "Unsupported image datatype 'struct'." "error in imwrite validateSizes", "Unsupported image datatype 'struct'." i did't understand whats the problem here..