A Robust Approach of Embedding Watermark Blocks In Digital Video for Copyright Protection Using Zero Padding Algorithm
Keywords:Copyright Protection, Digital Video Watermark, DWT, LL Sub-band, ZPA,
AbstractDigital copyright protection has become an effective way to prove the ownership and protect the multimedia contents from illegal use and unauthorized users. In order to prove the ownership of a video certain security program is embedded in a video and one of the ways of ensuring the ownership of a video is embedding the watermark in a video. In this paper a new approach of digital video copyright protection with Zero Padding Algorithm (ZPA) is proposed. With the help of this algorithm, it is hard to know the original pattern of watermark. This algorithm splits the watermark into small pieces and minimizes the perceptual degradation of watermarked video because of ZPA. In this paper Digital Wavelet transform (DWT) is used to embed the watermark in the LL sub-band, based on the energy of high frequency sub-band in an adaptive manner. The proposed algorithm has undergone various attacks, such as compression, uniform noise, Gaussian noise, frame repetition and frame averaging attacks. The proposed algorithm, sustain all the above attacks and offers improved performance compared with the other methods from the literature.
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