基于DWT和SVD的视频水印算法研究  

Algorithm of Video Watermarks Based on DWT and SVD

作　　者：王福丽[1] 陈雪松[2] 韩静[1] 

机构地区：[1]黑龙江八一农垦大学信息技术学院,大庆163319 [2]东北石油大学电气工程学院

出　　处：《黑龙江八一农垦大学学报》2014年第4期83-86,共4页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省教育厅科学技术研究项目(12531466)

摘　　要：针对现有的大多数视频水印算法不能很好地抵抗几何攻击的问题,基于离散小波变换(DWT)和奇异值分解(SVD)的视频水印算法,利用离散小波变换的多分辨率特性及奇异值的旋转、位移、转置、镜像变换的不变性,将置乱后水印的奇异值嵌入到离散小波变换的低频子带图像的奇异值上,得到较好的不可见性并实现了盲检测。实验表明,此算法能够对大多数水印攻击具有很好的鲁棒性,尤其提高了对抗空间上同步攻击的鲁棒性。The problem of the much digital video watermark couldn＇t resist geometry attack. Based on the video watermarking algorithm of discrete wavelet transform and singular value decomposition, the multi-resolution property of discrete wavelet transform and the rotation, displacement, transpose,invariance of image transformation of singular value were used to embed the singular values of scrambling watermark after discrete wavelet transform of low-frequency image singular value,which could get better invisibility and realize the blind detection. The results indicated that the algorithm had excellent robustness and could resist the most watermark attack, and the property of anti-space synchronous attack was enhanced especially.

关 键 词：DWT SVD 盲检测 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]