Digital watermarking for still image based on discrete fractional fourier transform  

作　　者：牛夏牧 孙圣和 

出　　处：《Journal of Harbin Institute of Technology(New Series)》2001年第3期309-311,共3页哈尔滨工业大学学报（英文版）

摘　　要：Presents a digital watermarking technique based on discrete fractional Fourier transform (DFRFT), discusses the transformation of the original image by DFRFT, and the modification of DFRFT coefficients of the original image by the information of watermark, and concludes from experimental results that the proposed technique is robust to lossy compression attack.Presents a digital watermarking technique based on discrete fractional Fourier transform (DFRFT), discusses the transformation of the original image by DFRFT, and the modification of DFRFT coefficients of the original image by the information of watermark, and concludes from experimental results that the proposed technique is robust to lossy compression attack.

关 键 词：WATERMARKING discrete fractional fourier transform lossy compression attack 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]