A watermarking method for still images using modified code division multiple access

Ji Hong Chen, Chin Hsing Chen, Wen Yuan Chen

研究成果: Conference contribution

摘要

Watermarking is a potential method for copyright protection and multimedia data authentication in the internet. The watermarking process can be considered as a communication task. In this paper, a novel watermarking scheme using code division multiple access (CDMA) modulation is proposed to achieve a superior performance in terms of robustness and imperceptibility. In the proposed scheme, every three watermark bits are modulated into a five bit MCDMA code. Then the MCDMA code is concealed in the coefficients of a DCT block. To demonstrate the efficiency of the proposed scheme, simulations under various conditions are conducted. The empirical results show that our proposed scheme can stand up against most common attacks including JPEG compression, rotating, resizing, cropping, mosaicking, noising and blurring etc.

原文English
主出版物標題Proceedings - 8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
頁面352-357
頁數6
DOIs
出版狀態Published - 2008
事件8th International Conference on Intelligent Systems Design and Applications, ISDA 2008 - Kaohsiung, Taiwan
持續時間: 2008 十一月 262008 十一月 28

出版系列

名字Proceedings - 8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
3

Other

Other8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
國家/地區Taiwan
城市Kaohsiung
期間08-11-2608-11-28

All Science Journal Classification (ASJC) codes

  • 人工智慧
  • 控制與系統工程

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