摘要
介绍了视频数字水印技术的特点和目前所采用的主要算法,针对MPEG-2视频基于小波变换的特性,提出了一种数字水印的设计方案,将伪随机序列嵌入到对亮度分量进行DWT分解后的低频和高频系数上,详述了水印的嵌入和检测过程,最后给出了结果分析。
Firstly, The paper summarizes the characteristic about digital video watermarking as well as the algorithms which are typical now. Based on wavelet transform, it presents the algorithm of digital watermarking used in the MPEG-2 video streams. In the paper, the process of embedding and detecting watermark are discussed. Finally, there is a analysis of the result.
出处
《信息技术》
2008年第4期116-117,共2页
Information Technology
