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	General expansion-shifting model for reversible data hiding
	Li, Xiaolong ; Guo, Zongming
	2016
关键词	DIFFERENCE EXPANSION INTEGER TRANSFORM WATERMARKING PREDICTION
英文摘要	Reversible data hiding (RDH) is a specific information hiding technique in which both the embedded data and the original cover medium can be exactly extracted from the marked data. In this paper, we present a general expansion-shifting model for RDH by introducing the so-called reversible embedding function (REF) which maps each point of Z(n) to a non-empty subset of Z(n). Moreover, to guarantee the reversibility, the mapped subsets of distinct points should be disjoint from each other. With REF, RDH can be designed and the corresponding rate-distortion formulations can be established, providing a possibility to optimize the reversible embedding performance. Some examples of REF are given, and a preliminary theoretical investigation on REF is conducted as well.; National Natural Science Foundation of China [61572052]; CPCI-S(ISTP); lixiaolong@pku.edu.cn; guozongming@pku.edu.cn
语种	英语
出处	Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA)
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/459651]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Xiaolong,Guo, Zongming. General expansion-shifting model for reversible data hiding. 2016-01-01.

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