High Capacity Image Watermarking in the Joint Spatio-Frequency Domain


Ozturk M., Akan A., ÇEKİÇ Y.

IEEE 17th Signal Processing and Communications Applications Conference, Antalya, Turkey, 9 - 11 April 2009, pp.49-51 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.49-51

Abstract

Watermarking techniques are proposed as a solution to copyright protection of digital media files. Watermarking algorithms are mainly concentrated on spatial or spectral domains. In this work, a robust and high capacity watermarking method that is based on spatio-frequency (SF) representations is presented. We use the Discrete Evolutionary Transform (DET) calculated by Gabor expansion to represent an image in the SF domain. A watermark is embedded onto selected coefficients in the joint SF domain. Hence by combining the advantages of spatial and spectral domain watermarking methods, a robust, invisible, secure and high capacity watermarking method is presented.