期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2014
卷号：5
期号：2
页码：1861-1863
出版社：TechScience Publications
摘要：Now-a-days, more and more interest is paid to reversible data hiding (RDH) in encrypted images, since it maintains the excellent property that the original image can be losslessly recovered after embedded data is extracted while protecting the image content’s privacy. Unlike previous methods, a Novel method is proposed by reserving room before encryption with a traditional RDH algorithm, so that it is easy for the data hider to reversibly embed the secret data in the encrypted image. The proposed method can achieve real reversibility i.e., data extraction and image recovery are free of any error. Our experiments show that this novel method can embed more data for the same image quality as the previous methods, such as for PSNR = 40 dB
关键词：Reversible data hiding; Image encryption; Selfreversible;embedding
