Optimum Watermarking Algorithm Based-on Cost Function

摘要：

This paper proposed a cost function in DWT domain, which combines the two most critical properties including the transparency and robustness. Based on the cost function, the optimum location can be found for watermarking. Through 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 detection. By utilizing the proposed approach, a good compromise between the transparency and robustness can be gotten in experiments.

关键词： Watermarking wavelet GGD cost function LOD

作者: Lian Xu Hu Xuelong Zhang Haiqiang

作者单位: School of Information Engineering,Yangzhou University,Yangzhou 225009,China School of Information Engineering,Yangzhou University,Yangzhou 225009,China;Jiangsu Province Key Lab

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）