Reversible data hiding in encrypted images by reserving room before encryption

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kede Ma
  • Weiming Zhang
  • Xianfeng Zhao
  • Nenghai Yu
  • Fenghua Li

Detail(s)

Original languageEnglish
Article number6470679
Pages (from-to)553-562
Journal / PublicationIEEE Transactions on Information Forensics and Security
Volume8
Issue number3
Online published25 Feb 2013
Publication statusPublished - Mar 2013
Externally publishedYes

Abstract

Recently, more and more attention is paid to reversible data hiding (RDH) in encrypted images, since it maintains the excellent property that the original cover can be losslessly recovered after embedded data is extracted while protecting the image content's confidentiality. All previous methods embed data by reversibly vacating room from the encrypted images, which may be subject to some errors on data extraction and/or image restoration. In this paper, we propose a novel method by reserving room before encryption with a traditional RDH algorithm, and thus it is easy for the data hider to reversibly embed data in the encrypted image. The proposed method can achieve real reversibility, that is, data extraction and image recovery are free of any error. Experiments show that this novel method can embed more than 10 times as large payloads for the same image quality as the previous methods, such as for PSNR=40 dB.

Research Area(s)

  • histogram shift, image encryption, privacy protection, Reversible data hiding

Citation Format(s)

Reversible data hiding in encrypted images by reserving room before encryption. / Ma, Kede; Zhang, Weiming; Zhao, Xianfeng; Yu, Nenghai; Li, Fenghua.

In: IEEE Transactions on Information Forensics and Security, Vol. 8, No. 3, 6470679, 03.2013, p. 553-562.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review