An improved wavelet-tree watermarking scheme

Chun Yu Lin*, Chung-Yen Su

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

2 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
主出版物標題ISPACS 2012 - IEEE International Symposium on Intelligent Signal Processing and Communications Systems
頁面275-279
頁數5
DOIs
出版狀態已發佈 - 2012 十二月 1
事件20th IEEE International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2012 - Tamsui, New Taipei City, 臺灣
持續時間: 2012 十一月 42012 十一月 7

出版系列

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

其他

其他20th IEEE International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2012
國家/地區臺灣
城市Tamsui, New Taipei City
期間2012/11/042012/11/07

ASJC Scopus subject areas

  • 人工智慧
  • 電腦網路與通信
  • 訊號處理

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