An efficient high-capacity reversible data hiding scheme for encrypted images

Guan, Bo; Xu, Dawen

doi:10.1016/j.jvcir.2019.102744

Cited by 24 publications

(7 citation statements)

References 36 publications

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“…In general, for Lena, Baboon, Boat, and Airplane, the proposed scheme provides significantly better embedding rate than the scheme in ref. [6]. For other test images, it can be seen from Figure 13 that the embedding rate of our proposed method is basically close to that of the method in ref.…”

Section: Comparisons and Discussionsupporting

confidence: 60%

“…For other test images, it can be seen from Figure 13 that the embedding rate of our proposed method is basically close to that of the method in ref. [6]. This is because in our method, when

p

= 4, that is, three MSBs are used for data hiding, these test images have the highest embedding rate.…”

Section: Experimental Results and Comparisonsmentioning

confidence: 99%

“…In ref. [6], since up to three MSBs of each available pixel in the encrypted image are utilised for data hiding, its maximum embedding rate can reach 2.6492 bpp for eight test images. The maximum embedding rate of the proposed method in these test images is 2.9661 bpp, which is contributed by Airplane.…”

Section: Experimental Results and Comparisonsmentioning

confidence: 99%

“…In this section, we have made some comparisons between our method and some related methods proposed by Guan and Xu [6], Qian and Zhang [11], Puteaux and Puech [16], and Xu and Wang [25]. Taking eight well known images as examples, the embedding rate comparison between the proposed method and some existing methods is given in Figure 13.…”

Section: Comparisons and Discussionmentioning

confidence: 99%

“…Over the last decade, some substantial studies have been carried out for RDH‐EI. In general, the existing RDH‐EI algorithms can be roughly classified into three categories, these are ‘vacating room after encryption (VRAE)’, ‘reserving room before encryption (RRBE)’, and RDH in homomorphic encrypted domain [6].…”

Section: Introductionmentioning

confidence: 99%

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Reversible data hiding in encrypted images with high payload

2022

IET Information Security

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Reversible data hiding in encrypted images (RDH‐EI) can be used as an efficient technique to directly embed additional data in the encrypted domain without violating privacy. In this study, a multi‐MSB (most significant bit) prediction‐based RDH‐EI scheme is proposed, which is completely reversible and has high embedding payload. An improved gradient adjustment predictor (GAP) is used for pixel prediction. A binary location map is employed to store the location of the prediction errors. Subsequently, pre‐processing is performed on accurately predicted pixels in the original image to store the prediction difference. The pre‐processed image is encrypted using a stream cipher, and then the data hider can substitute multi‐MSB values of each available pixel in encrypted image with secret message bits to obtain the marked encrypted image. On the recipient side, the secret message can be extracted without any error and the original image can be reconstructed losslessly. Experimental results show that not only the embedding payload is improved but also the hidden data can be extracted accurately, and the cover image can be recovered perfectly.

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Section: Comparisons and Discussionsupporting

confidence: 60%

“…For other test images, it can be seen from Figure 13 that the embedding rate of our proposed method is basically close to that of the method in ref. [6]. This is because in our method, when