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图像数字水印抗几何变换方法的研究 被引量：6

Research on Method Against Geometrical Distortion of Image Digital Watermarking
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摘要 针对目前数字水印抗几何攻击方法,提出一种基于模板匹配和Radon变换联合应用的几何变换参数估计方法。通过嵌入到图像DFT域的模板以估计尺度缩放参数,利用Radon变换估计旋转角度参数。实验结果表明该方法可以有效地估计图像的尺度缩放和旋转角度参数,利用这些参数能对被测水印图像进行相应的几何校正,具有较理想的实验效果。 A method is proposed that is based on template match and Radon transform of calculating the affined factors in digital watermarking against geometrical distortion. The template embedded DFT is used to estimate the size of the image＇ s scale, and the Radon transform is employed to estimate the parameters of rotated angle. Experimental results show that the method can estimate the size of the image＇ s scale and the parameters of rotated angle efficiently,and all parameters can be used tO make geometrical emendation for the examined watermarked image, which is proved to have perfect effect.
作者 王忠 管章岑
机构地区 武汉工程大学计算机科学与工程学院
出处 《科学技术与工程》 2007年第9期1926-1930,共5页 Science Technology and Engineering
关键词 数字水印 几何变换 模板 RADON变换 digital watermarking geometrical distortion template Radon transform
分类号 TP317.4 [自动化与计算机技术—计算机软件与理论]
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参考文献10

  • 1[1]Wu M,Miller M L,Bloom J A,et al.A rotation,scale and translation resilient public watermark.IEEE International Conference on Acoustics,Speech,and Signal Processing(ICASSP'99),March 15-19,1999;(4):2065
  • 2[2]Kim B S,Choi J G,Park C H,et al.Robust digital image watermarking method against geometrical attacks.Real-Time Imaging,2003;9(2):139-149
  • 3[3]Liu Yah,Zhao Jiying.Rotation,scaling,translation invariant image Watermarking based on Radon transform.Proceedings of the First Canadian Conference on Computer and Robot Vision(CRV'04),2004
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  • 5[5]Pereira S,Ruanaidh J K O,Deguillaume F,et al.Template Based Recovery of Fourier-based watermarks using log-polar and log-log Maps.IEEE Int Conf on Multimedia Computing and Systems(ICMC S99),Florence,Italy,1999
  • 6[6]Pereira S,Pun T.Robust template matching for affine resistant image watermarks.IEEE Transactions on Image Processing,2000;6(9):1123-1129
  • 7胡玉平,韩德志,羊四清.抗几何变换的小波域自适应图像水印算法[J].系统仿真学报,2005,17(10):2470-2475. 被引量：14
  • 8谢荣生,刘承香,杨树国,郝燕玲.基于模板匹配的抗几何攻击图像数字水印[J].哈尔滨工程大学学报,2002,23(3):54-58. 被引量：16
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二级参考文献20

  • 1[1]HISASHI INOUE,AKIO MIYAZAKI,AKIHIRO YAMAMOTO,et al. A digital watermark technique based on the wavelet transform and its robustness on image compression and transformation[J]. IEICE Trans Fundamentals, 1999, E82-A (1): 90-98.
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共引文献28

同被引文献18

引证文献6

二级引证文献15

科学技术与工程
2007年 第9期

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