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基于小波域HMM模型的自适应图像水印算法

张荣跃 倪江群 黄继武

张荣跃, 倪江群, 黄继武. 基于小波域HMM模型的自适应图像水印算法. 自动化学报, 2005, 31(5): 705-712.
引用本文: 张荣跃, 倪江群, 黄继武. 基于小波域HMM模型的自适应图像水印算法. 自动化学报, 2005, 31(5): 705-712.
ZHANG Rong-Yue, Ni Jiang-Qun, HUANG Ji-Wu. An Adaptive Image Watermarking Algorithm Based on HMM in Wavelet Domain. ACTA AUTOMATICA SINICA, 2005, 31(5): 705-712.
Citation: ZHANG Rong-Yue, Ni Jiang-Qun, HUANG Ji-Wu. An Adaptive Image Watermarking Algorithm Based on HMM in Wavelet Domain. ACTA AUTOMATICA SINICA, 2005, 31(5): 705-712.

基于小波域HMM模型的自适应图像水印算法

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    通讯作者:

    倪江群

An Adaptive Image Watermarking Algorithm Based on HMM in Wavelet Domain

More Information
    Corresponding author: Ni Jiang-Qun
  • 摘要: An adaptive image watermarking algorithm based on HMM in wavelet domain is proposed. The algorithm is abstracted as follows: 1) the vector HMM model is employed to describe the statistical characteristic of image wavelet coefficients and the resulting HMM based detector achieves significant improvements in performance compared to the conventional correlation detector; 2) adaptive watermark embedding based on HVS analysis; 3) a novel embedding strategy which is optimized for the HMM tree structure is adopted; 4) the strategy of dynamical threshold is applied in watermark detection. High robust results are achieved against Stirmark attacks, such as JPEG compression, adding noise, median cut and filter.
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出版历程
  • 收稿日期:  2003-11-26
  • 修回日期:  2005-06-26
  • 刊出日期:  2005-09-20

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