DISCRETE EVOLUTIONARY TRANSFORM BASED ROBUST IMAGE WATERMARKING

Ozturk M., Cekic Y., Akan A.

23rd International Symposium on Computer and Information Sciences (ISCIS), İstanbul, Turkey, 27 - 29 October 2008, pp.291-292, (Full Text)

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/iscis.2008.4717910
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.291-292
  • Istanbul University Affiliated: Yes

Abstract

Watermarking techniques are used as a solution to copyright protection of digital media files. In this work, a new and robust watermarking method that is based on spatio-frequency (SF) representations is presented. We use the discrete evolutionary transform calculated by the Gabor expansion to represent an image in the SF domain. A watermark is embedded onto selected cells in the joint SF domain. Hence by combining the advantages of spatial and spectral domain watermarking methods, a robust and perceptual method is presented.