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Digital watermarking is the newfangled idea in digital media. As the replication and modification of digital media content is done frequently and without any significant obstruction, secrecy and authenticity become vulnerable to attacks. In the information hiding community digital watermarking has achieved immense popularity due to its righteous stronghold against piracy and non-repudiation. Many watermarking algorithm has been developed in recent years. From the context of the purposes, as they serve, they differ from each other. In this paper, the authors focus on digital watermarking technique & algorithm for digital watermarking technique using discrete wavelet transformation.
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