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A modified moment-based image watermarking method robust to cropping attack

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4 Author(s)
Tianrui Zong ; Sch. of Inf. Technol., Deakin Univ., Melbourne, VIC, Australia ; Yong Xiang ; Elbadry, S. ; Nahavandi, S.

Developing a watermarking method that is robust to cropping attack is a challenging task in image watermarking. The moment-based watermarking schemes show good robustness to common signal processing attacks and some geometric attacks but are sensitive to cropping attack. In this paper, we modify the moment-based approach to deal with cropping attack. Firstly, we find the probability density function (pdf) of the pixel value distribution from the original image. Secondly, we reshape and normalize the pdf of the pixel value distribution (PPVD) to form a two dimensional image. Then, the moment invariants are calculated from the PPVD image. Since PPVD is insensitive to cropping, the proposed method is robust to cropping attack. Besides, it also has high robustness against other common attacks. Experimental results demonstrate the effectiveness of the proposed method.

Published in:

Industrial Electronics and Applications (ICIEA), 2013 8th IEEE Conference on

Date of Conference:

19-21 June 2013