Open Access

A Survey of Watermarking Algorithms for Image Authentication

EURASIP Journal on Advances in Signal Processing20022002:218932

DOI: 10.1155/S1110865702204047

Received: 20 November 2001

Published: 26 June 2002

Abstract

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 effective authentication scheme. We present some algorithms, and introduce frequently used key techniques.

Keywords

image processing security cryptography watermarking content authentication review state of the art

Authors’ Affiliations

(1)
Multimedia Department, Eurecom Institute

Copyright

© Rey and Dugelay 2002