摘要
Abstract
Aiming at problems in video watermark security, combined with DWT three wavelet decomposi-tion, the paper proposes a study on a linear predictive coding technique and DWT robustness video watermarking. Firstly, the video division frame processing and video compression by using linear predictive coding technique; then 2D-DWT [1] three wavelet decomposition for each frame; and finally calculating four optimal rations by opti-mizing algorithms, and embedding the watermark according to this scale capacity to three decomposition coeffi-cients. Experimental results show that this method improves video watermark embedding security and robustness.关键词
线性预测编码/DWT/视频分帧/视频水印Key words
Linear Predictive Coding/DWT/Video Processing Sub-Frame/Video Watermarking分类
信息技术与安全科学
