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Digital Watermarking
[chapter]
2009
Encyclopedia of Biometrics
This paper presents a process able to mark digital pictures with an invisible and undetectable secrete information, called the watermark. This process can be the basis of a complete copyright protection system. The process rst step consists in producing a secrete image . The rst part of the secret resides in a basic information that forms a binary image. That picture is then frequency modulated. The second part of the secret is precisely the frequencies of the carriers. Both secrets depends on
doi:10.1007/978-0-387-73003-5_2118
fatcat:tkbh6xmlwjcttfgq72e5arnwe4