23-06-2010, 09:33 PM
Presented By:
Christine I. Podilchuk
and Edward J. Delp
Abstract
Digital watermarking of multimedia content has become a very active research area over the last several years. A general framework for watermark embedding and detection/decoding is presented here along with a review of some of the algorithms for different media types described in the literature. We highlight some of the differences based on application such as copyright protection, authentication, tamper detection, and data hiding as well as differences in technology and system requirements for different media types such as digital images, video, audio and text.
Introduction
The success of the Internet, cost-effective and popular dig- ital recording and storage devices, and the promise of higher bandwidth and quality of service (QoS) for both wired and wireless networks has made it possible to create, replicate, transmit, and distribute digital content in an ef- fortless way. The protection and enforcement of intellec- tual property rights for digital media has become an important issue. In 1998, Congress passed the Digital Millenium Copyright Act (DMCA) which makes it illegal to circumvent any technological measure that protects an ownerâ„¢s intellectual property rights of digital content. The headline news regarding Napster made the general public aware of the issues regarding intellectual property rights and the impact of current technology.
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http://citeseerx.ist.psu.edu/viewdoc/dow...1&type=pdf
