设计抵抗RST(旋转、缩放、平移)攻击的数字水印算法是数字水印技术研究中的难点。针对这个难点,本文采用了广泛应用于模式识别中的几何矩技术,利用3个原始图像的几何矩和遭受攻击后图像的几何矩信息准确地估计出水印图像所经历的几何攻击,然后对其逆变换校正,确保了水印嵌入与检测的同步,极大的提高了水印算法抵抗RST攻击的能力。本文实验结果表明:该算法对抗RST攻击具有很好的鲁棒性。
Abstract
Resistance to rotation, scaling, translation vRST) attacks is a difficulty of digital water?marks. A novel watermark algorithm which is resistant to geometric attacks based on geometric mo?ment was proposed. Geometric distortions of the watermarked image were estimated accurately and its inverse transformation was corrected by geometric moments, of the original and the watermarked im?ages, used for pattern recognition, to ensure synchronization between embedding and detecting of the watermark and improve the resistance to RST attacks. The simulated results demonstrate that the al?gorithm is very robust to RST attacks.
关键词
信息处理技术 /
数字水印 /
RST攻击 /
几何矩 /
鲁棒性
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Key words
information processing /
digital watermark /
RST attacks /
geometric moment /
robust
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参考文献
[1] 夏光升,陈明奇,杨义先,等.基于模运算的数字水印算法[J]. 计算机学报,2000,23(11):1146-1150.
XIA Guang-sheng, CHEN Ming-qi, YANG Yi-xian, et al. Water-mark algorithm based on modulo[J] ? Chinese Journal of Comput?ers, 2000,23(11):1146-1150. (in Chinese)
[2] Lu Chun-Shien. Cocktail watermarking for digital image protec?tion [ J ].IEEE Trans on Multimedia, 2000,2(4) :209 - 224.
[3] Quang Minh Tieng, Wageeh W Boles. Wavelet-based affine in?variant representation: a tool for recognizing planar objects in 3D space[ J ] . IEEE Trans on Pattern Analysis and Machine Intelli?gence, 1997,19(8): 846-857.
[4] Bas P, Chassery J M, Macq B. Geometrically invariant water-marking using featui-e point[J]. IEEE Trans, on Image Process?ing, 2002,11(9): 1014-1028.
[5] Pereira S, Ruanaidh J, Deguillaume F, et a1. Template based re?covery of Fourier-based watermarks using log-polar and log-log maps[C] //Proc Int Conference on Multimedia Computing and Systems, Florence, Italy. June 1999, (I): 870-874.
[6J Oruanaidh J, Pun T, Rotation. Scale and translation invariant spread spectrum digital image watermarking [J]. Signal Process?ing, 1998, 66(3):303-317.
[7] Lin C Y, Bloom J A, Cox I J, et al. Rotation, scale, and transla-tion resilient watermarking for images[j]. IEEt frans on Image Processing, 2001,10(5):767-782.
[8] Cox I J, KiIian J,Leighton T, et al. Secure spread spectrum wa-termarking for multimedia[J]. IEEE Trans on Image Processing, 1997,6(12): 1673-1687.
[9] Hu M K. Visual pattern recognition by moment invariants[ J]. IRE Trans Information theory, 1962,IT(8) : 179 — 187.
[10] Su Po-Chyi, Jay Kuo C C. An image watermarking scheme to resist generalized geometrical transformations [ C] // Proc of SPIE the International Society for Optical Engineering, Boston, 2000: 6-8..
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脚注
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