Digital image manipulation software is now readily available on personal computers. It is therefore very simple to tamper with any image and make it available to others. Insuring digital image integrity has therefore become a major issue.Watermarking has become a popular technique for copyright enforcement and image authentication. The aim of this paper is to present an overview of emerging techniques for detecting whether image tampering has taken place. Compared to the techniques and protocols for security usually employed to perform this task, the majority of the proposed methods based on watermarking, place a particular emphasis on the notion of content authentication rather than strict integrity. In this paper, we introduce the notion of image content authentication and the features required to design an e?ective authentication scheme. We present some algorithms, and introduce frequently used key techniques.
A survey of watermarking algorithms for image authentication
EURASIP Journal on applied Signal Processing Volume 2002 N°6 - June 2002, special issue on image analysis for multimedia interactive services
© Hindawi. Personal use of this material is permitted. The definitive version of this paper was published in EURASIP Journal on applied Signal Processing Volume 2002 N°6 - June 2002, special issue on image analysis for multimedia interactive services and is available at : http://dx.doi.org/10.1155/S1110865702204047
PERMALINK : https://www.eurecom.fr/publication/975