A High Robust Video Digital Watermark Algorithm Based on Embedding and Extracting in Random Frames

Two classifications of robustness were given in video digital watermark. Then extracting watermark was deduced to sample overlap in two random samplings. With the help of "two thirty" conclusion, a new algorithm was proposed with high reliability and robustness. The proposed algorithm can resist frame-edit attacks efficiently which are familiar and hard to solve. And it supplies an important technical method for practical applications of video digital watermarks.