IMAGE STEGANOGRAPHY LSB ENCODING PROBLEM ..How to do next step.

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aditya kumar sahu
aditya kumar sahu 2016-10-3
评论： Massimo Zanetti 2016-10-3
a=imread('insect.gif');
[m n]=size(a); for i=1:m, for j=1:n, b8(i,j)=bitand(a(i,j),128); b7(i,j)=bitand(a(i,j),64); b6(i,j)=bitand(a(i,j),32); b5(i,j)=bitand(a(i,j),16); b4(i,j)=bitand(a(i,j),8); b3(i,j)=bitand(a(i,j),4); b2(i,j)=bitand(a(i,j),2); b1(i,j)=bitand(a(i,j),1); end end

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