Abstract: Digital Watermarking is a process of embedding information in the multimedia content (host or
cover image) for image authentication. An ideal watermarking system would embed an amount of information
that could not be removed or altered without making the cover object entirely unusable. Over the past few years
digital watermarking has become popular due to its significance in content authentication and legal ownership
for digital multimedia data. A digital watermark is a sequence of information containing the owner's copyright.
It is inserted invisibly in another image so that it can be extracted at later times for the evidence of rightful
ownership..
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