watermark_generation.m

Digital watermarking

 function out = watermark_generation(len_WM);
%
% This will generate the random watermark of the size of len_WM
% the water mark will be a guassian random no. between 1 and -1
%
% len_WM = length of the desired watermark
% out    = randomly generated watermark
out = randn([1 len_WM]);
out = out./(max(abs(out)));