An improved watermarking technique for the casting of digital signatures

Katsaros, Ioannis and Honary, Bahram (2004) An improved watermarking technique for the casting of digital signatures. In: 3G Mobile Communication Technologies, 2004. 3G 2004. Fifth IEE International Conference on. IEEE, London, pp. 490-493. ISBN 086341 388 9

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Abstract

"Patchwork" is a proven method of digital signature casting in images. This paper introduces a new method that improves the security of existing robust watermark encoding schemes. The proposed method provides protection to JPEG compression up to a ratio of 1:5 whereas most existing methods are robust up to a ratio of 1:4. Images are shown and simulation results are provided as examples of the robustness of the method.

Item Type: Contribution in Book/Report/Proceedings
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 60991
Deposited By: ep_importer_pure
Deposited On: 06 Feb 2013 18:23
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 11:20
URI: https://eprints.lancs.ac.uk/id/eprint/60991

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