摘要
为了统计不同算法的透明性和鲁棒性,比较不同算法的优缺点,针对基于DCT和DFT的视频盲水印算法进行了研究。研究并实现了3种基于DCT的视频水印算法和1种基于DFT的视频水印算法。通过实验,统计它们的透明性和鲁棒性。结果表明,DCT算法的透明性优于DFT算法;DFT算法抗几何攻击的鲁棒性优于DCT算法,DCT算法抗编码攻击的鲁棒性优于DFT算法。
Video watermark is an emerging technology for copyright protection and authentication of digital video, this paper has researched and realized blind video watermarking algorithms based on DCT and DFT, Studied and implemented three kinds of DCT-based video watermark algorithms and one DFT-based video watermark algorithm, and counted transparency and robustness of algorithms. Experiments show that the transparency of DCT algorithms is superior to the DFT algorithm; and the robustness of the DFT algorithm against ge- ometrical attacks is better than DCT algorithms, the robustness of DCT algorithms against coding attacks is better than the DFT algorithm.
出处
《北京印刷学院学报》
2012年第4期32-35,共4页
Journal of Beijing Institute of Graphic Communication
基金
北京市教委科技计划面上项目(KM201210015006)
北京市教委科技计划面上项目(KM201110015007)
北京市教委科技计划面上项目(KM201210015007)
北京市教委科技计划重点项目(KZ201210015015)
北京市属高校人才强教资助项目(PHR201108349)
北京印刷学院校内重点项目(E-a-2012-27)
