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一种在正交化分形压缩图像中嵌入灰度水印的方法

DOI: 10.11834/jig.20090618

Keywords: 分形图像编码,数字水印,分形正交变换

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Abstract:

传统的基于分形编码的水印技术一般采用0,1码,没有实现灰度图像的嵌入。本文在研究正交化分形编码的基础上,构造出水印嵌入变换函数,提出了一种能够嵌入灰度图像的分形编码水印算法,且水印提取速度大大加快。利用正交化分形解码参数在迭代过程中的不变性,使水印直接嵌入解码参数,从而实现了灰度水印嵌入。实验结果和数据表明,水印嵌入对宿主图像分形编码质量几乎没有影响,具有可行性。与传统算法相比,本文算法在抗剪切处理、低通滤波,JPEG压缩等方面具有更好的鲁棒性。

References

[1]  王炳锡 陈琦 邓峰森.数字水印技术[M].西安:西安电子科技大学出版社,2003.1-16.
[2]  陈作平 叶正麟.基于K均值聚类的快速分形编码方法[J].中国图象图形学报,2007,12(4):586-591.
[3]  Paute J, Jordan F. Using fractal compression scheme to embed a digital signature into image [ A ]. In: Proceedings of SPIE Photonics East Symp Osium[C], Boston MA, 1996 : 18-22.
[4]  Jacquin A E. Image coding based on a fractal theory of iterated contractive image transformations [J]. IEEE Transactions on Image Processing, 1992,1 ( 1 ) : 18-30.
[5]  Φien G E,LepsΦy S. Fractal based image coding with fast decoder convergence [J]. Signal Processing, 1994,40 ( 1 ) : 105-117.
[6]  Φien G E, LepsΦy S. A class of fractal image coders with fast decoder convergence [ A ]. Fractal Image Compression: Theory and Application [C] , London, UK: Springer-Verlag Press, 1995: 153-175.
[7]  Pi Ming-hong, BAsu Anup, Mandal Mrinal,A new decoding algorithm based on rang block mean and contrast scaling[ A]. In: Proceedings of ICIP 2003 [C], Barcelona, Spain, 2003,2:271-274.
[8]  Pi Ming-hong, BAsu Anup, Mandal Mrinal, et al. A comparison of non-orthogonal and orthogonal fractal decoding[ A]. In: Proceedings of the 2004 International Conference on Image Processing [C] , Singapore, 2004:505-508.
[9]  Wu Hsien-Chu, Chang Chin-Chen. Hiding digital watermarks using fractal compression technique [J]. Fundamenta Informaticae 2003, 58 (2): 189-202.
[10]  Zhao Yao, Ma Qiang, Yuan Bao-zong. Digital watermark based on LIFS[ A ]. In: Proceeding of the 5th International Conference on Signal Processing[C], Beijing ,2000 : 1281 - 1284.

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