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?

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