An improved wavelet-tree watermarking scheme

Chun Yu Lin, Chung-Yen Su

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper presents an improved wavelet-tree watermarking scheme for copyright protection. We decompose an image into four-level subbands and group the subband coefficients into many wavelet-trees. The N-bit watermark is embedded into the first N shuffled trees. An improved scheme based on changing only one coefficient of each tree is proposed to embed a watermark bit. Compared with the previous wavelet-tree watermarking scheme, the proposed scheme not only can improve the image quality but also can speed up the execution of watermark embedding. Experimental results are shown to demonstrate the effectiveness of the proposed scheme.

Original languageEnglish
Title of host publicationISPACS 2012 - IEEE International Symposium on Intelligent Signal Processing and Communications Systems
Pages275-279
Number of pages5
DOIs
Publication statusPublished - 2012 Dec 1
Event20th IEEE International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2012 - Tamsui, New Taipei City, Taiwan
Duration: 2012 Nov 42012 Nov 7

Publication series

NameISPACS 2012 - IEEE International Symposium on Intelligent Signal Processing and Communications Systems

Other

Other20th IEEE International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2012
CountryTaiwan
CityTamsui, New Taipei City
Period12/11/412/11/7

Keywords

  • copyright protection
  • discrete wavelet tramsform
  • watermarking
  • wavelet-tree

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Signal Processing

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  • Cite this

    Lin, C. Y., & Su, C-Y. (2012). An improved wavelet-tree watermarking scheme. In ISPACS 2012 - IEEE International Symposium on Intelligent Signal Processing and Communications Systems (pp. 275-279). [6473495] (ISPACS 2012 - IEEE International Symposium on Intelligent Signal Processing and Communications Systems). https://doi.org/10.1109/ISPACS.2012.6473495