Structural digital signature and semi-fragile fingerprinting for image authentication in wavelet domain

Yan Zhu, Chang Tsun Li, Hong Jia Zhao

Research output: Book chapter/Published conference paperConference paper

12 Citations (Scopus)

Abstract

In this paper, a novel semi-fragile authentication scheme based on block-mean quantization in the wavelet domain is proposed for image authentication. The scheme is composed of a structural digital signature process and a semi-fragile watermarking/ fingerprinting algorithm. In the signature process, the invariants are extracted as authentication codes from the quantization relationships and hierarchy information of discrete wavelet decomposition. The authentication codes consist of inter-block and intra-block codes in order to detect and localize tampering. The semi-fragile fingerprinting algorithm is intended to embed the signature via the use of block-mean quantization. The proposed scheme can effectively detect and localize the malicious modification while tolerating lossy compression.

Original languageEnglish
Title of host publicationProceedings - IAS 2007 3rd Internationl Symposium on Information Assurance and Security
Pages478-483
Number of pages6
DOIs
Publication statusPublished - 2007
Event3rd Internationl Symposium on Information Assurance and Security, IAS 2007 - Manchester, United Kingdom
Duration: 20 Aug 200731 Aug 2007

Conference

Conference3rd Internationl Symposium on Information Assurance and Security, IAS 2007
CountryUnited Kingdom
CityManchester
Period20/08/0731/08/07

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