Digital Video Protection in the DWT-SVD Domain Using Scrambled Watermark by GMSAT Algorithm
Keywords:
DWT, GMSAT algorithm, H.264/AVC codec, SVD, WatermarkAbstract
In this paper, the protection of video content from copying by embedding a scrambled watermark is considered. The watermark is scrambled by the GMSAT algorithm, and the insertion is performed by a reliable algorithm in the DWT-SVD domain of each frame. The video is encoded by the H.264/AVC encoder before it is uploaded on a Web server, while variable-quality watermarks are extracted on the client side from the decoded video. Using an algorithm for quality enhancement of the extracted watermark, the excellent SSIM index of 0.8956, and NC coefficient of 0.9852 was realized. The obtained results are in rank with the best one published. Experimental results justify the use of the shown video protection technique because it provides a higher quality of the extracted watermark compared to other insertion techniques.
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