Blind Watermarking Algorithm Against Geometric Attacks Based on Directionlet-domain

Liu Jing; Wang  Ying-Hui; Liu Gang; He  Wen-Juan

doi:10.3724/SP.J.1146.2010.00166

Volume 33 Issue 2

Mar. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2011 > 33(2): 442-447

Liu Jing, Wang Ying-Hui, Liu Gang, He Wen-Juan. Blind Watermarking Algorithm Against Geometric Attacks Based on Directionlet-domain[J]. Journal of Electronics & Information Technology, 2011, 33(2): 442-447. doi: 10.3724/SP.J.1146.2010.00166

Citation:

Liu Jing, Wang Ying-Hui, Liu Gang, He Wen-Juan. Blind Watermarking Algorithm Against Geometric Attacks Based on Directionlet-domain[J]. Journal of Electronics & Information Technology, 2011, 33(2): 442-447. doi: 10.3724/SP.J.1146.2010.00166

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Blind Watermarking Algorithm Against Geometric Attacks Based on Directionlet-domain

doi: 10.3724/SP.J.1146.2010.00166

Liu Jing^{*① 王映辉
,},
Wang Ying-Hui,
Liu Gang,
He Wen-Juan

Received Date: 2010-03-01
Rev Recd Date: 2010-11-16
Publish Date: 2011-02-19

Abstract

Abstract

Watermark robustness to geometric attacks is still a challenging issue. A blind watermarking scheme is proposed against geometric attacks to construct watermark synchronization information by using Directionlet: Firstly, the edge detection operator is utilized to extract image edges; Then, the slope of those edges are computed according to Lagrange theorem; Finally, the direction vector of the two choosed edges constitute the generator matrix of Directionlet; Watermark are adaptively embedded into Directionlet coefficients of the selected cosets. It is Directionlet matrix formed of image edges that eliminates the effect of geometric attacks. Experimental results show the proposed watermarking algorithm is robust, especially at the geometric attacks such as rotation.
- Watermarking algorithm,
- Directionlet transform,
- Lagrange theorem,
- Generator matrix

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References(1)

References

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