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Hi everyone, I am trying to find a code for my problem.ie, I want to hide bits in an image by shifting two highest peaks in the histogram.here is my program but it wont work.I am not much familiar with MATLAB. can anybody please help me?

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ATHIRA KELOTH
ATHIRA KELOTH 2015-11-19
关闭： MATLAB Answer Bot 2021-8-20
I = imread('image.jpg'); message = 'hi I am ATHIRA' message = strtrim(message); m = length(message) * 8; AsciiCode = uint8(message) binarystring = transpose(dec2bin(AsciiCode,8)) binarystring = binarystring(:); N = length(binarystring); b = zeros(N,1); for k = 1:N if(binarystring(k) == '1') b(k) = 1; else b(k) = 0; end end c=rgb2gray(I); Ih1=imhist(c,256); [h,bin]=imhist(c); x=h [p a]=max(x(:)) x(a,1)=0; [p1 a1]=max(x(:)) ir=max(a,a1) is=min(a,a1) s = c; height = size(c,1); width = size(c,2); for i = 1 : height for j = 1 : width if (c(i,j) < is) s(i,j) = (c(i,j)-1); elseif (c(i,j) == is) if(b(k)==1) s(i,j) = (c(i,j)-1); else s(i,j)=c(i,j); end elseif(is < c(i,j) < ir ) s(i,j) = c(i,j) ; elseif(c(i,j)==ir) if(b(k)==1) s(i,j)=(c(i,j)+1); else s(i,j)=c(i,j); end
elseif(c(i,j)>ir)
s(i,j)= (c(i,j)+1);
end
end
end

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