Video watermarking technology is the use of certain algorithms to embed some of the iconic video watermark information to them, it' s the video for copyright protection, information hiding technology research in the field is an important direction. This topic through analysis of the development of the background video watermarking technology, applications, development status and related theoretical knowledge embedded in the paper, a video key frame watermark algorithm. The algorithm uses Arnold scrambling technology to encrypt watermark image pre-processing, and then extract the video key frame according to the Euclidean distance method. Finally, LSB algorithm to embed and extract watermark in keyframes. Treated composite video key frame can still be normal after play, and will not be noticed or noticed the human perceptual system. Experiments show that the algorithm is reasonably easy to achieve.

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