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
ID Code:
60991
Deposited By:
Deposited On:
06 Feb 2013 18:23
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 05:41