Capacity Enhancement of Reversible Data Hiding Technique Using Adaptive Embedding
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چکیده
Page | 60 Capacity Enhancement of Reversible Data Hiding Technique Using Adaptive Embedding Cheenu Bansal, Preeti Gupta ABSTRACT: Reversible data hiding is current research area in field of data hiding. Reversible data hiding is defined as the process of hiding secret data in such a way that at receiver side both secret message and cover image can be recovered. This kind of reversibility is required in some areas such as medical and military applications. One most important characteristic of proposed hiding scheme is to use adaptive embedding means hiding two bits together in one pixel pair depending upon the complexity of image. This scheme also utilizes the histogram shifting and prediction error expansion scheme. It means two dimensional histogram scheme is used. Another advantage of proposed scheme is that no location map is required for this scheme hence overhead information reduces. Main focus of this paper is on enhancing the capacity of RDH (Reversible data hiding scheme).
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