›› 2016, Vol. 29 ›› Issue (2): 12-.

• 论文 • 上一篇    下一篇



  1. (上海理工大学 光电信息与计算机工程学院,上海 200093)
  • 出版日期:2016-02-15 发布日期:2016-02-25
  • 作者简介:朱萌(1991—),女,硕士研究生。研究方向:数字水印。陈青(1962—),女,硕士生导师。研究方向:信号处理。
  • 基金资助:


Contourlet Domain Image Watermarking Algorithm Based on Singular Value Decomposition

ZHU Meng,CHEN Qing   

  1. (School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
  • Online:2016-02-15 Published:2016-02-25



关键词: Arnold变换, Contourlet变换, 能量, 奇异值分解


Wavelet transform can not represent the geometrical structure of the image effectively and sparsely because of the lack of direction.A digital watermarking algorithm based on singular value decomposition in Contourlet domain is proposed to combine the advantages of Contourlet transform and SVD.After two layers of Contourlet transformation,the host image is decomposed into series of multi-scale and multi direction subbands.The subband of the second layer with the maximum energy is selected to be subdivided into non-overlapping blocks of size 4×4 and then the blocks are decomposed with singular value decomposition (SVD).The watermark information is embedded into the singular value matrix.Experimental results show that the algorithm is simple to implement with good transparency,strong robustness against the common attacks and geometric attacks and is superior to the general algorithms in Wavelet domain.

Key words: Arnold transform;Contourlet transform;energy;singular value decomposition


  • TP391