一种基于FFMPEG的MPEG-2视频水印算法

近年来，许多算法被提出并且运用到多媒体水印中去，相较于图像水印和音频水印，视频水印数据量大，处理更为复杂。基于FFM PEG平台，大大减少了编程量。同时为了提高水印的不可见性和鲁棒性，将提取出的关键帧，进行离散余弦变换（DCT ）变换，利用Itti视觉模型，划分出视觉显著区域，然后采用DC-QIM 量化将置乱后的二进制水印信息嵌入非显著区域，保证水印的嵌入对视频质量的影响最小。实验结果表明，算法具有良好的不可见性，以及对常见攻击较好的鲁棒性。

MPEG-2 video watermarking based on FFMPEG

Nowadays many watermarking algorithms have been proposed and implemented for multimedia watermarking .Compared to the image watermarking and audio watermarking ,the data of video watermarking is larger and the processing is more complex .In this paper ,the FFMPEG platform is used which can greatly reducing the complex programming . In order to improve invisibility and robustness of the watermarking , a key frame of the M PEG-2 video is extracted and the discrete cosine transform (DCT ) is implemented .We use the Itti’s visual saliency model to distinguish visual salient regions and after scrambling binary watermark ,then the DC-QIM is adopted to embed the watermark on visual non-salient regions to ensure that the embedding watermark on the video achieve the minimum impact .The results of the experiment show that the algorithm has good invisibility and has good robustness to common attacks .