基于Arnold置乱的小波变换数字视频水印

提出了一种结合小波变换和Arnold变换的数字水印算法。首先用Arnold变换将水印图像置乱,然后将置乱后的水印图像,通过对视频关键帧图像的小波变换将其嵌入到视频的关键帧图像中,以完成水印的嵌入。Arnold变换是图像置乱常用的一种方法,对水印图像进行置乱处理能够提高其信息安全性,而且对于嵌入水印之后的视频帧来说,其抗剪切攻击等能力也会得到提高。将Arnold变换应用到视频水印中,可以使视频水印的安全性、可靠性以及水印嵌入的鲁棒性都得到有效提高。

Digital Video Watermarking Scheme Based on Wavelet and Arnold Transformation

This paper proposed an digital video watermarking algorithm based on wavelet transform and Arnold transformation.First,the watermarking image is scrambled by the Arnold transformation,then the key frames of a video are extracted,finally we use the wavelet transform to embed the watermarking image in the video key frames.Arnold transformation is a commonly used method in image scrambling.Scramble the watermarking image can enhance the security of its information.To the key frames with watermarking,their ability of resisting the shearing attack is improved.Apply the Arnold transformation to video watermarking scheme will effectively improved the security,reliability and robustness of the whole system.