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Abstract

With the rapid growth of the Internet and multimedia systems in distributed environments, it is easier for digital data owners to transfer multimedia documents across the Internet. Therefore, there is an increase in concern over copyright protection of digital content. However, current technology dose not protect their copyright properly. In the early days, encryption and control access techniques were used to protect the ownership of media. They do not protect against unauthorized copying after the media have been successfully transmitted and decrypted. Recently, the watermark techniques are utilized to maintain the copyright. In this paper, we focus on using the digital watermarking techniques to protect digital multimedia intellectual copyright and propose a new algorithm for video watermarking. We present a novel DWT-based blind digital video watermarking scheme with scrambled watermark. Our scheme embeds different parts of a signal watermark into different scenes of a video under the wavelet domain. To increase robustness of the scheme, the watermark is refined by th