%0 Journal Article
%T Digital watermarking algorithm based on phase and amplitude of DFT domain<br>一种基于离散傅立叶变换域相位和幅度的数字水印算法
%A CAO Rong
%A WANG Ying
%A LI Xiang-lin
%A <br>曹荣
%A 王颖
%A 李象霖
%J 计算机应用
%D 2005
%I 
%X A meaningful watermark was embedded into phase and amplitude components of block DFT of image seperately, then their robustnesses were compared under the same distortion. Combined with phase and amplitude components, a novel DFT domain watermarking algorithm was proposed. The watermark could be detected without the primitive image. Experiment results show that the algorithm is easy to realize and the watermarking is invisible, moreover, the algorithm is robust to JPEG compression, resizing, rotation, median filtering and noise perturbation.
%K digital image
%K copyright protection
%K digital watermarking
%K DFT(Discrete Fourier Transform)<br>数字图像
%K 版权保护
%K 数字水印
%K 离散傅立叶变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=3AD5745E03ED2293&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=708DD6B15D2464E8&sid=D3BE2D10C95334C0&eid=2A68F6B3140E72EA&journal_id=1001-9081&journal_name=计算机应用&referenced_num=3&reference_num=8