文章基本信息

标题：Reversible Data Hiding Technique with Improved Reversibility in Encrypted Images
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作者：Himangi Mohan Mujumdar ; Prof. Sachin B. Takale
期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：3
页码：11104-11108
出版社：IJECS
摘要：Reversible Data Hiding is a form of Steganography, in which embedded information is recovered at the destination without anydistortion with respect to information as well as cover media. This paper proposes a novel technique which deals with embedding data intoencrypted images and recovering back the data as well as image without any distortion. Proposed technique also separates data embeddingand image encryption steps. Person having only data hiding key can embed and extract the embedded data without the knowledge ofencryption key. Room required to hide data is created before image encryption by estimating values of some randomly selected pixelpositions. Improved histogram sifting method is used to hide data into the estimating errors of randomly selected pixel locations. Data isembedded with data hiding key. These estimating errors and remaining image pixel points are encrypted with standard encryption algorithmlike AES (Advanced Encryption Standard). To encrypt estimating errors special encryption technique may be used. Proposed techniqueyields in complete reversibility.
关键词：reversible data hiding; image encryption; image recovery; RDH.