DWT-SVD BASED IMAGE WATERMARKING USING PARTICLE SWARM OPTIMIZER

ASLANTAŞ V., DOĞAN A., ÖZTÜRK S.

IEEE International Conference on Multimedia and Expo (ICME 2008), Hannover, Almanya, 23 - 26 Haziran 2008, ss.241-244 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/icme.2008.4607416
  • Basıldığı Şehir: Hannover
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.241-244
  • Erciyes Üniversitesi Adresli: Evet

Özet

Several watermarking schemes have been proposed with the purpose of copyright protection and access control for multimedia objects. In this paper, an optimal Discrete Wavelet Transform-Singular Value Decomposition (DWT-SVD) based image watermarking scheme using Particle Swarm Optimizer (PSO) is presented. Proposed DWT-SVD based watermarking; algorithm initially decomposes the host image into subbands, afterwards the singular values of each subband of the host image are modified by different scaling factors to embed the watermark image. Modifications are optimized using PSO to obtain the highest possible robustness without losing the transparency. Experimental results show improvement both in transparency and robustness under certain attacks.