%0 Journal Article
%T A Review of Robust Watermarking for Halftone Images<br>鲁棒的半色调图像水印综述
%A ZHENG Hai-hong
%A WANG Yi-feng
%A ZENG Ping
%A KONG Yue-ping
%A <br>郑海红
%A 王义峰
%A 曾平
%A 孔月萍
%J 中国图象图形学报
%D 2007
%I 
%X Watermarking techniques for halftone images have been well developed recently.They are widely used for protecting the copyright of printouts and preventing card or ticket,as well as currency from illegal forgery.Firstly the principle and implementation of watermarking for halftone images are given.Then the analysis of direct-embedding methods,indirect-embedding methods and halftone visual cryptography methods is conducted.The comparisons show that the HVS-based indirect-embedding schemes have a promising application in the copyright control of paper products.Finally the open issues and possible future research directions are pointed out.
%K data hiding
%K digital watermarking
%K halftone image
%K robustness<br>信息隐藏
%K 数字水印
%K 半色调图像
%K 鲁棒性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=DA1EA72E5E079AC5&yid=A732AF04DDA03BB3&vid=59906B3B2830C2C5&iid=94C357A881DFC066&sid=B75DC817262E20A8&eid=E339BF74025BB291&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=2&reference_num=37