Robust image watermarking using local invariant features
Robust image watermarking using local invariant features
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DOI：
10.1117/1.2181887
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发表时间：
2006-03
影响因子：
1.3
通讯作者：
Hae-Yeoun Lee;H. Kim;Heung-Kyu Lee
中科院分区：
文献类型：
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作者：
Hae-Yeoun Lee;H. Kim;Heung-Kyu Lee
本文探讨了一种使用局部不变特征的新型数字图像鲁棒水印方法。以前的大多数水印算法都无法抵御几何失真，因为几何失真会使版权信息的插入位置发生变化。我们提出了一种对几何失真具有鲁棒性的水印方法。为了抵御几何失真，我们使用了一种称为 "尺度不变特征变换 SIFT "的图像局部不变特征，它对平移和缩放失真具有不变性。水印被插入由 SIFT 生成的圆形斑块中。利用极坐标映射圆形补丁的平移特性实现了旋转不变性。我们的方法属于盲水印，因为在检测过程中不需要原始图像。我们进行了大量仿真，以证明所提方法的鲁棒性。仿真结果证明，我们的方法对几何失真攻击和信号处理攻击都有很好的鲁棒性。我们将结果与其他方法进行了比较，结果表明我们的方法优于其他方法。© 2006 光电仪器学会
This paper addresses a novel robust watermarking method for digital images using local invariant features. Most previous water- marking algorithms are unable to resist geometric distortions that desyn- chronize the location where copyright information is inserted. We pro- pose a watermarking method that is robust to geometric distortions. In order to resist geometric distortions, we use a local invariant feature of the image called the scale-invariant feature transform SIFT, which is invariant to translation and scaling distortions. The watermark is inserted into the circular patches generated by the SIFT. Rotation invariance is achieved using the translation property of the polar-mapped circular patches. Our method belongs to the blind watermark, because we do not need the original image during detection. We have performed an inten- sive simulation to show the robustness of the proposed method. The simulation results support the contention that our method is robust against geometric distortion attacks as well as signal-processing attacks. We have compared our results with those of other methods, and our method outperforms them. © 2006 Society of Photo-Optical Instrumentation