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基于差错控制的图像水印算法 被引量:2

Image Watermarking Algorithm Based on Error Control
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摘要 提出了一种基于差错控制的图像水印算法,在嵌入水印时先将水印信息进行纠错编码再嵌入到图像中,在提取水印时对恢复出的水印信息进行纠错解码。实验结果表明,该算法比未采用差错控制的同一水印算法具有更好的稳健性。 An image watermarking algorithm based on error control is proposed in this paper. The watermarks are coded for error correction before embedding into host image, the distill watermarks are decoded for error correction. Experimental results demonstrate that the proposed algorithm is superior to the identical algorithm that doesn't adopt error control in robustness.
出处 《计算机工程》 CAS CSCD 北大核心 2003年第8期1-2,7,共3页 Computer Engineering
基金 国家"973"项目资助项目(G19980304192-2)
关键词 数字水印 差错控制 位扩展 噪声阈值 相关函数 Digital watermarkingError controlBit extensionNoise thresholdRelation function
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参考文献5

  • 1[1]Delaigle J F,Vleeschouwer C D,Macq B.Watermarking Using a Matching Model Based on the Human Visual System.Ecole th?Matique CNRS GDR-PRC ISIS:Information Signal Images,Marlyle Roi,1997
  • 2[2]Delaigle J F.Digital Images Protection Techniques in a Broadcast Framework: Overview.Proceedings of the European Conference on Multimedia Applications,Services and Techniques,Louvain-la-Neuve, Belgium,1996-06:711-728
  • 3[3]Darmstaedter V.A Block Based Watermarking Technique for MPEG-2 Signals:Optimization and Validation on Real Digital TV Distribution Links.Proceedings of the European Conference on Multimedia Applications,Services and Techniques,1998-05
  • 4[4]Hernadez J R.The Impact of Channel Coding on the Performance of Spatial Watermarking for Copyright Protection. Proceedings of the IEEE International Conference on Acoustics,Speech and Signal Processing ,1998:2973-2976
  • 5[5]Hartung F,Girod B.Digital Watermarking of MPEG-2 Coded Video in the Bitstream Domain.Germany:Proceeding of the IEEE international Conference on Acoustics,Speech,and Signal Processing,1997-04,4: 2621-2624

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