RE: [WM]: On DFT/FFT-based Watermarking

[Amr Nasr <amr128@yahoo.com>]

hi
  you should also maintain the symmetric properties 
otherwise you will get unexpected complex values
 and that is done by embedding on a circular basis 
   and on the same circle .
  that  means to embed the value two times  in the
magnitude spectrum .
        on the other hand, in order to be robust you
should embed in the highest values
                                  AMR NASR


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