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http://dx.doi.org/10.4218/etrij.14.0213.0449

A Modified Reversible Data Hiding in Encrypted Images Using Random Diffusion and Accurate Prediction  

Li, Ming (College of Computer Science, Chongqing University)
Xiao, Di (College of Computer Science, Chongqing University)
Peng, Zhongxian (College of Computer Science, Chongqing University)
Nan, Hai (College of Computer Science, Chongqing University)
Publication Information
ETRI Journal / v.36, no.2, 2014 , pp. 325-328 More about this Journal
Abstract
A modified version of Zhang's reversible data hiding method in encrypted images is proposed in this letter. To make full use of spatial correlation in natural images, the former idea of block division is thoroughly abandoned, whereas the random diffusion strategy is used. Additionally, the fluctuation measurement of pixels containing embedded data is improved by accurate prediction. The experiment results reveal that our proposed method is superior to both Zhang's method and the later improved version proposed by Hong and others.
Keywords
Reversible data hiding; encrypted image; random diffusion; accurate prediction;
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