摘要
针对多用户共享版权问题,提出了一种DCT域多重视频盲水印算法。该算法结合Arnold置乱及视觉系统特性,通过自适应地调整视频画面绿色分量的DCT系数,实现了不同水印在视频载体中的嵌入。根据视频内容灵活地选择嵌入系数,将经过Arnold置乱的不同图像水印嵌入到视频画面绿色分量的DCT中低频系数里,较好地实现了多重水印在视频载体中的嵌入及盲提取。仿真实验表明,文中算法对常规视频攻击表现出了较好的稳定性,并且具有算法复杂度低及实用性强等特点。
A new type of video multiple blind watermarking scheme based on discrete cosine transform is proposed ,which aims at the demand of multi - user copyright sharing protection. The scheme which combines the scrambling technology and human visual system achieves the multiple watermark em- bedded in different frequency components by adjusting the DCT coefficients of the video frame＇ s green component. The scheme embedded the binary im- age watermark after scrambling in the DCT middle and low frequency coefficients of the video frame＇ s green component, and adaptive selection of the em- bed - depth according to video content. The scheme better achieves the multiple watermark embedded in the video carrier and the blind extraction. The experimental results show that the scheme is efficient to resist traditional signal processing attacks, and the scheme has low complexity, the usability is strong.
出处
《电视技术》
北大核心
2013年第5期26-28,70,共4页
Video Engineering
基金
江西省教育厅青年科学基金项目(GJJ11132)
