Invariant Image Watermarking Based on Local Feature Regions

被引:13
作者
Deng, Cheng [1 ]
Gao, Xinbo [1 ]
Li, Xuelong [2 ]
Tao, Dacheng [3 ]
机构
[1] Xidian Univ, Sch Elect Engn, Xian, Peoples R China
[2] Birkbeck Univ London, Sch Comp Sci & Informat Syst, London WC1E 7HU, England
[3] Hong Kong Polytech, Dept Comp, Hong Kong, Peoples R China
来源
PROCEEDINGS OF THE 2008 INTERNATIONAL CONFERENCE ON CYBERWORLDS | 2008年
基金
中国国家自然科学基金;
关键词
D O I
10.1109/CW.2008.50
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper, a robust image watermarking approach is presented based on image local invariant features. The affine invariant point detector is used to extract feature regions of the given host image. Image normalization and dominant gradient orientation alignment are performed to these feature regions. Thereafter, circular watermark pattern are embedded in these image normalized patches. After the above procedures, full affine invariance can be achieved over these normalized patches. A large amount of experiments demonstrate that the proposed approach is robust against different attacks, such as common image processing, rotation, scaling, cropping, and several other geometric distortions.
引用
收藏
页码:6 / +
页数:2
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