[WM]: Orthonormal vectors

[madan mohan <madannill@yahoo.co.in>]

Hello watermarkers,
   
  Is it possible to add two or more random orthonormal vectors without affecting image quality. If it is possible, will there be any
impact if the image is then low pass filtered? Can the presence of those added orthonormal vectors can be detected using correlation
after low pass filtering?
   
  thank you in advance,
   
  regards
  Madan


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