DCT sign-based robust image hashing

Prungsinchai, Supakorn, Khelifi, Fouad and Bouridane, Ahmed (2013) DCT sign-based robust image hashing. In: 8th International Conference for Internet Technology and Secured Transactions (ICITST-2013). IEEE, Piscataway, NJ, pp. 401-405. ISBN 978-1908320209

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Abstract

This paper proposes a robust image hashing technique based on the sign of coefficients in the Discrete Cosine Transforms (DCT) domain. The idea consists of exploiting the energy compaction property of the DCT and its ability to carry information of edges and texture in DCT sign values. It has been shown that the DCT sign-based hashing technique offers an excellent robustness against signal processing operations and geometric attacks and outperforms the conventional DCT-based image hashing technique.

Item Type:	Book Section
Uncontrolled Keywords:	Discrete cosine transform, image hashing, robustness, identification
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	11 Jul 2014 15:01
Last Modified:	12 Oct 2019 19:08
URI:	http://nrl.northumbria.ac.uk/id/eprint/17124

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