A novel blind color image watermarking based on Contourlet transform and Hessenberg decomposition
作者: Qingtang SuGang WangGaohuan LvXiaofeng ZhangGuanlong DengBeijing Chen
作者单位: 1Ludong University
2Nanjing University of Information Science & Technology
刊名: Multimedia Tools and Applications, 2017, Vol.76 (6), pp.8781-8801
来源数据库: Springer Nature Journal
DOI: 10.1007/s11042-016-3522-z
关键词: Contourlet transformHessenberg matrixColor image watermarkBlind watermarking
原始语种摘要: In this paper, a novel blind color image watermarking based on Contourlet transform and Hessenberg decomposition is proposed to protect digital copyright of color image. Firstly, each color channel of the host image is transformed by Contourlet transform and its low frequency sub-band is divided into 4 × 4 non-overlap coefficient block. Secondly, the coefficient block selected by MD5-based Hash pseudo-random algorithm is decomposed by Hessenberg decomposition. Thirdly, the watermark information permuted by Arnold transform is embedded into the biggest energy element of the upper Hessenberg matrix by quantization technique. In extraction process, the quantization strength is used for blindly extracting watermark information from the attacked host image without the help of any original...
全文获取路径: Springer Nature  (合作)
分享到:
来源刊物:
影响因子:1.014 (2012)

×
关键词翻译
关键词翻译
  • image 
  • watermark 船水线上部污痕
  • transform 变换
  • color 上色
  • blind 暗的
  • decomposition 分解
  • robustness 坚固性
  • quantization 量子化
  • copyright 版权
  • pseudo