Digital Watermarking

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Author(s): Aidan Mooney (National University of Ireland Maynooth, Ireland)
Copyright: 2009
Pages: 21
Source title: Handbook of Research on Secure Multimedia Distribution
Source Author(s)/Editor(s): Shiguo Lian (SAMI Lab, France Telecom R&D Beijing, China)and Yan Zhang (Simula Research Laboratory, Norway)
DOI: 10.4018/978-1-60566-262-6.ch015

Keywords: Information Science Reference / Media & Communications / Multimedia Technology

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Abstract

As Internet usage continues to grow, people are becoming more aware of the need to protect the display and presentation of digital documents. Digital watermarking offers a means to protect such documents. It works by embedding a piece of information into these documents – either visibly or invisibly – which can be detected or extracted from the document at a later stage to prove ownership of the document. This chapter will review, in detail, the process of digital image watermarking and will evaluate the different types of watermarks which may be used and the different techniques used to embed the watermarks. An examination of the domains used to embed the watermarks and some of the techniques used for detection of the embedded watermark are provided. Finally future trends within the area of digital watermarking are outlined.

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