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Wordcount: 1827
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Digital Watermarking
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Digital watermarking
Introduction
1 A digital watermark is an identification code, permanently embedded into digital data, carrying information on copyright protection and data authentication.
2 The enormous popularity of the World Wide Web in the early 1990s demonstrated the commercial potential of offering multimedia resources through the digital networks. Since commercial interests seek to use the digital networks to offer digital media for profit, they have a strong interest in protecting their ownership rights. Digital watermarking has been proposed as one way to accomplish this.
3 A digital watermark is a digital signal or pattern inserted into a digital image. Since this signal or pattern is present in e
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