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Reversal of pixel rotation : a reversible data hiding system towards cybersecurity in encrypted images
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Wang, Xu, Chang, Ching-Chun, Lin, Chia-Chen and Chang, Chin-Chen (2022) Reversal of pixel rotation : a reversible data hiding system towards cybersecurity in encrypted images. Journal of Visual Communication and Image Representation, 82 . 103421. doi:10.1016/j.jvcir.2021.103421 ISSN 1047-3203.
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Official URL: http://dx.doi.org/10.1016/j.jvcir.2021.103421
Abstract
Due to privacy and security concerns, the researches of reversible data hiding in encrypted images (RDHEI) have become increasingly important. Conventional schemes vacate the spare room after image encryption (VRAE) suffer from the low embedding rate, high error rate of data extraction, and imperfect image recovery. To address these issues, we propose a separable reversible data hiding scheme for encrypted images that utilizes a novel pixel rotation technique to embed data into fully encrypted images. The block complexities of four decrypted rotation states are considered when recovering image. To realize perfect image recovery, we further devise a lossless version (LPR-RDHEI). Experimental results demonstrate that the proposed PR-RDHEI scheme achieves an embedding rate of 0.4994 bpp on average and ensures lossless data extraction. Meanwhile, the proposed LPR-RDHEI scheme still has a 0.4494 bpp embedding rate on average. The embedding rates of our two schemes are significantly improved compared with state-of-the-arts.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||||||
Journal or Publication Title: | Journal of Visual Communication and Image Representation | ||||||||
Publisher: | Academic Press Inc Elsevier Science | ||||||||
ISSN: | 1047-3203 | ||||||||
Official Date: | January 2022 | ||||||||
Dates: |
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Volume: | 82 | ||||||||
Article Number: | 103421 | ||||||||
DOI: | 10.1016/j.jvcir.2021.103421 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) |
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