Robust digital image watermarking based on principal component analysis and discrete wavelet transform

Jen Sheng Tsai, Win Bin Huang, Po Hung Li, Chao Lieh Chen, Yau Hwang Kuo

研究成果: Conference contribution

摘要

In this paper, a robust image watermarking algorithm based on principal component analysis and discrete wavelet transform is proposed for copyright protection. At first, an orientation histogram is obtained from the direction of the feature points of an image identified by a scale invariant feature transform in the proposed watermark embedding scheme. The highest peak of the orientation histogram regarded as the dominant orientation of an image is a start index to divide the image into bins covering 360 degree range of orientation. Moreover, the most important principal components of image coefficients within each bin are obtained after applying principal component analysis. Finally, the copyright watermark is inserted into the wavelet coefficients of these components in quantization steps. Similarly, the proposed watermark detecting scheme follows the above procedure to blindly extract the copyright watermark from a watermarked image. Various attacks are applied to the watermarked images in order to examine the robustness of our algorithm. The experimental results in this paper show that the proposed watermarking algorithm can tolerate JPEG compression, median filtering, Gaussian filtering, sharpening, and rotation attacks.

原文English
主出版物標題Advances in Multimedia Information Processing - PCM 2008 - 9th Pacific Rim Conference on Multimedia, Proceedings
頁面506-514
頁數9
DOIs
出版狀態Published - 2008
事件9th Pacific Rim Conference on Multimedia, PCM 2008 - Tainan, Taiwan
持續時間: 2008 十二月 92008 十二月 13

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
5353 LNCS
ISSN(列印)0302-9743
ISSN(電子)1611-3349

Other

Other9th Pacific Rim Conference on Multimedia, PCM 2008
國家/地區Taiwan
城市Tainan
期間08-12-0908-12-13

All Science Journal Classification (ASJC) codes

  • 理論電腦科學
  • 電腦科學(全部)

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