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Hiding a Logo Watermark in an Image for Its Copyright Protection

  • Jun Zhang
  • Feng Xiong
  • Nengchao Wang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2555)

Abstract

Due to the urgent need for protecting the copyright of digital products in a digital library, this paper proposes a novel public watermarking scheme for a still image. Firstly, the image is decomposed to the multiwavelet domain, in which there are four subblocks in the coarsest resolution level. Then a logo watermark is embedded into the low frequency band by quantizing the difference value between corresponding coefficients in a pair of subblocks in the coarsest resolution level. Experimental results show that the proposed scheme is superior to the conventional quantization based approaches in terms of robustness.

References

  1. 1.
    D. Kundur, D. Hatzinakos: Digital Watermarking for Telltale Tamper Proofing and Authentication. Proceedings of the IEEE, Vol 87 (1999) 116–1180.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Jun Zhang
    • 1
  • Feng Xiong
    • 2
  • Nengchao Wang
    • 1
  1. 1.School of Computer Science & TechnologyHuazhong University of Science & TechnologyWuhanP.R.China
  2. 2.School of computerGuangdong Commercial CollegeGuangzhouP.R.China

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