基于DCT符号的鲁棒图像哈希

8th International Conference for Internet Technology and Secured Transactions (ICITST-2013) Pub Date : 2013-12-01 DOI:10.1109/ICITST.2013.6750230

Supakorn Prungsinchai, F. Khelifi, A. Bouridane

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引用次数: 3

摘要

提出了一种基于离散余弦变换(DCT)域系数符号的鲁棒图像哈希技术。该思想是利用DCT的能量压缩特性及其在DCT符号值中携带边缘和纹理信息的能力。研究表明，基于DCT符号的哈希技术对信号处理操作和几何攻击具有良好的鲁棒性，优于传统的基于DCT的图像哈希技术。

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DCT sign-based robust image hashing

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.

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来源期刊

8th International Conference for Internet Technology and Secured Transactions (ICITST-2013)

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