Optimum Watermarking Algorithm Based-on Cost Function

作     者：Lian Xu 1 Hu Xuelong 1 2 Zhang Haiqiang 1 (1.School of Information Engineering Yangzhou University Yangzhou 225009 China) 2.Jiangsu Province Key Lab for Image Processing and Communication Nanjing University of Post and Telecommunications Nanjing 215006 China) 

会议名称：《2007 8th International Conference on Electronic Measurement & Instruments（ICEMI’2007）》

会议日期：2007年

学科分类：0839[工学-网络空间安全] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Research and Application on Image Analysis FLOS-based Open Project (No.ZK206008) of Jiangsu Province Key Lab for Image Processing and Communication 

关 键 词：Watermarking wavelet GGD cost function LOD 

摘      要：This paper proposed a cost function in DWT domain,which combines the two most critical properties including the transparency and *** on the cost function,the optimum location can be found for *** modeling to the wavelet coefficient by the GGD （Generalized Gaussian Density）,we proposed the method of estimation of shape parameter,which corresponding to LOD （Locally Optimum Detection） also can be used in watermarking *** utilizing the proposed approach,a good compromise between the transparency and robustness can be gotten in experiments.