DCT sign-based robust image hashing

Supakorn Prungsinchai, Fouad Khelifi, Ahmed Bouridane

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)


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.
Original languageEnglish
Title of host publication8th International Conference for Internet Technology and Secured Transactions (ICITST-2013)
Place of PublicationPiscataway, NJ
ISBN (Print)978-1908320209
Publication statusPublished - Dec 2013


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