Threshold Controlled Scheme of Difference Expansion Techniques for Reversible Watermarking  

作　　者：蒋历军 郭小涛 杨浩 赵俊 庄天戈 

机构地区：[1]Department of Biomedical Engineering,Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2010年第5期541-548,共8页上海交通大学学报（英文版）

基　　金：the National High Technology Research and Development Program (863) of China (No.2007AA02Z452) ;the National Natural Science Foundation of China (Nos.30570511 and 30770589)

摘　　要：Since Tian Jun proposed the difference expansion embedding technique,based on which,many reversible watermarking techniques were proposed.However,these methods do not perform well when the payload is high.In this paper,we proposed an expandable difference threshold controlled scheme for these three methods.Experiments show that our scheme improves the performance of these three methods for heavy payload.Since Tian Jun proposed the difference expansion embedding technique, based on which, many reversible watermarking techniques were proposed. However, these methods do not perform well when the payload is high. In this paper, we proposed an expandable difference threshold controlled scheme for these three methods. Experiments show that our scheme improves the performance of these three methods for heavy payload.

关 键 词：difference expansion embedding technique reversible watermarking visual quality difference threshold controlled scheme 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]