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New adaptive algorithm for video watermarking

In this paper, a new adaptive watermarking algorithm is presented for video image coding. Operating on the compressed video data-stream directly, we embed watermarking information into motion vectors. According to watermarking information and the feature vectors of motion vectors, the proposed algorithm can adaptively select the embedding scheme with the aim to get good watermarked image quality. The watermark is extracted blindly without the original images and experimental results show that the proposed algorithm has good compatibility with the present compression standards, and it is very simple and efficient.