本文使用MATLAB作为实验平台，针对提出的视频水印和视频密写方法进行了大量实验，得到了精确的实验数据并进行了分析。
For the proposed video watermarking approach and video steganography approach, we take MATLAB as the platform to conduct many tests, gain many exact experimental results and analyze them.
针对精确定位型脆弱水印算法的安全性问题，提出一种基于图像奇异值的脆弱水印方案。
A novel fragile watermarking based on image singular value was proposed to overcome the security problems of fragile watermarking with precise localization.
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