Title :
Secure semi-fragilewatermarking for image authentication
Author :
Fei, Chuhong ; Kwong, Raymond ; Kundur, Deepa
Author_Institution :
A.U.G. Signals Ltd., Toronto, ON, Canada
Abstract :
This paper proposes a secure semi-fragile authentication watermarking algorithm for natural images by embedding two complementary watermarks for content change analysis. Two authenticator watermarks are generated and embedded in different regions of the images: one for detecting malicious modifications and the other for estimating the degree of the changes. The proposed scheme is able to distinguish common content-preserving changes from malicious content-changing modifications. Simulations on real images demonstrate the effectiveness of the authentication watermarking scheme.
Keywords :
image coding; message authentication; watermarking; content change analysis; image authentication; natural images; secure semifragile watermarking scheme; Area measurement; Authentication; Cryptography; Discrete cosine transforms; Distortion measurement; Educational institutions; Image coding; Pixel; Security; Watermarking; Digital watermarking; Multimedia authentication; Semi-fragile authentication;
Conference_Titel :
Information Forensics and Security, 2009. WIFS 2009. First IEEE International Workshop on
Conference_Location :
London
Print_ISBN :
978-1-4244-5279-8
Electronic_ISBN :
978-1-4244-5280-4
DOI :
10.1109/WIFS.2009.5386465
