An Improved Reversible Watermarking Scheme

摘要：

In this paper,we propose an improved high capacity reversible watermarking scheme with capacity control.By introducing reversible contrast mapping (RCM) transform and difference expansion (DE) technique into our scheme,a compressed location map indicating watermarking locations is not needed.The proposed scheme explores important features of DE embedding and takes the advantage of RCM transform to embed a few indicative flags instead of the location map for DE embedding.It improves the distortion performance at low embedding bit-rate and solves the capacity control problem.The scheme can also achieve high capacity.

作者: Kun Ma Xinxin Niu

作者单位: Information Security Center,State KeyLaboratory of Networking and SwitchingTechnology,Beijing Univer Information Security Center,State Key Laboratory of Networking and Switching Technology,Beijing Univ

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）