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A Secure Hierarchical Fragile Watermarking Method with Tamper Localization

Authors: Xianhai Zhang; Yongtian Yang; Yan Zhu 0010;

A Secure Hierarchical Fragile Watermarking Method with Tamper Localization

Abstract

Several image authentication schemes are either vulnerable to attacks or sacrifice localization accuracy to improve security. In this paper, we proposed a scheme that not only thwarts all kinds of attacks such as vector quantization (VQ) and oracle attack in order to satisfy the security but also ensures superior accuracy of tamper localization. It is effective because the detection is based on a hierarchical structure so that the accuracy of tamper localization can be ensured. That is, if a tampered pixel is not detected in level-4, it will be detected in level 3, level 2 or level 1 with a probability of nearly 1. The method can detect any tampered pixel and the size of 2times2 pixel block with a missing rate less than 0.78% and 0.19% respectively, and the missing rate of more than or equal the size of 4times4 pixel block is approximately close to 0. Experimental results demonstrate that the proposed scheme is highly sensitive to intentional tampering and the embedding watermarking is imperceptive

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
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