Comprehensive coverage of an important and current hot topic.; Details both theoretical as well as practical aspects.; Presents new data hiding algorithms for images and videos.; Reveals a number of attacks and countermeasures for data hiding systems, with a focus on digital music.

* Introduction * Preliminaries * Classification and capacity of embedding mechanisms * Handling uneven embedding capacity * Data hiding in binary images * Multilevel data hiding for images & videos * Data hiding for image authentication * Data hiding for video communication * Attacks on known data-hiding algorithms * Attacks on unknown data-hiding algorithms * Conclusion and perspectives * Index