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一种改进的敏感数字水印技术 被引量:2

Improved fragile watermark technique
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摘要 首先介绍了数字水印的基本原理并对图像数字水印技术进行了总结 ,然后提出了一种改进的基于离散Haar小波变换和量化编码的敏感数字水印技术。针对原技术的缺陷 ,在改进技术中 ,离散Haar小波变换没有进行归一化处理 ;此外 ,对量化函数和水印嵌入公式进行了修改。理论和实验证明 ,这些改进使得该敏感数字水印技术可以更容易地实现 ,消除了原有的缺陷。最后 。 This paper firstly introduces the principle of watermark and summarizes the techniques of image watermark. Then an improved fragile watermark technique is presented, where Haar wavelet transform does not involve normalization, and quantization function is mended, watermark embedding equation is also improved. With these improvements, the watermark technique does work precisely. Using the error control code, fragile watermark detection can be done without original watermark.
机构地区 大连
出处 《光学精密工程》 EI CAS CSCD 2002年第3期253-256,共4页 Optics and Precision Engineering
关键词 离散小波变换 敏感数字水印 纠错编码 数据安全 discrete wavelet transform fragile watermark error control code data security
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同被引文献15

  • 1Hartung F, Kutter M. Multimedia Watermarking Techniques [ J ].Proc IEEE, 1999, 87(7) :1079-1107.
  • 2Eskicioglu A M. A Key Transport Protocol for Conditional Access Systems[C]. San Jose, California, USA:Proceedings of the SPIE Conference on Security and Watermarking of Multimedia Contents Ⅲ,2001. 139-148.
  • 3Piva A, Barni M, et al. Application-driven Requirements for Digital Watermarking Technology[ C ]. Proc of EMMSEC'98,1998.28-30.
  • 4Swanson M D,et al. Multimedia Data-embedding and Watermarking Technologies[ J]. Proc IEEE, 1998,86(6) : 1064-1087.
  • 5Miyazaki A, Okamoto A. Analysis of Watermarking System in the Frequency Domain and its Application to Design of Robust Water-marking Systems[ C ]. IEEE International Conference on Acoustics,Speech and Signal Processing,2001. 1969-1972.
  • 6Alieva T, Bastiaans M J, Calvo M L. Fractional Cyclic Transforms in Optics[J]. Theory and Applications Recent Research Developments in Optics,2001,1 (3) :105-122.
  • 7Yetik Y P, Kutay M A, Ozaktas H M. Image Representation and Compression with the Fractional Fourier Transform[ J]. Optics Communications,2001,197:275-278.
  • 8Pereira S, Voloshynoskiy S, Pun T. Optimal Transform Domain Watermark Embedding via Linear Programming [ J ]. Signal Processing,2001,81 (6) : 1251-1260.
  • 9Memon N, et al. Steganalis of Watermarking Techniques Using Image Quality Metrics [ C ]. San Jose, USA:Proceedings of SPIE Security and Watermarking of Multimedia Contents Ⅲ, 2001.22-25.
  • 10宋玉杰,谭铁牛.基于脆弱性数字水印的图象完整性验证研究[J].中国图象图形学报,2003,9(1):4-10. 被引量:46

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