Towards tamper detection and classification with robust watermarks

HD Knowles, DA Winne, CN Canagarajah, DR Bull

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)
259 Downloads (Pure)


In this paper, we present a novel wavelet-based double watermarking system for the detection and subsequent characterisation of the tampering of images. Most tamper detection techniques use fragile watermarks. However, our previous work showed that this type of watermark is frequently completely destroyed by compression, which in many cases is undesirable. In addition, it gives little or no information about the nature of the attack. We propose using two robust watermarks, one inserted at the embedder, the other at the detector. The second watermark is used as a reference with which the first watermark may be compared. This allows additional information not previously available about the nature of the attack to be obtained. The use of a robust strategy prevents the watermark being easily destroyed, but instead allows the system to continue to perform after significant attacks.
Translated title of the contributionTowards tamper detection and classification with robust watermarks
Original languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems (ISCAS '03), Bangkok, Thailand
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
PagesII-959 - II-962
Number of pages4
ISBN (Print)0780377613
Publication statusPublished - May 2003
EventInternational Symposium on Circuits and Systems, 2003 - Bangkok, Thailand
Duration: 1 May 2003 → …


ConferenceInternational Symposium on Circuits and Systems, 2003
Abbreviated titleISCAS '03
Period1/05/03 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: This work is supported by Motorola, the Metropolitan Police and
EPSRC grant GMIM81885.

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