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Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation
As digitalization becomes more common, patients' concerns about the leakage of private information, such as electronic medical record, are increasing, and those concerns motivated this case study of secure covert communication. Therefore, in this paper, a novel reversible data hiding method bas...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8270722/ https://www.ncbi.nlm.nih.gov/pubmed/34306594 http://dx.doi.org/10.1155/2021/5709513 |
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author | Su, Guo-Dong Lin, Chia-Chen Chang, Chin-Chen |
author_facet | Su, Guo-Dong Lin, Chia-Chen Chang, Chin-Chen |
author_sort | Su, Guo-Dong |
collection | PubMed |
description | As digitalization becomes more common, patients' concerns about the leakage of private information, such as electronic medical record, are increasing, and those concerns motivated this case study of secure covert communication. Therefore, in this paper, a novel reversible data hiding method based on pixel rotation is proposed for medical images. Using pixel rotation, a state mapping model is constructed to represent the payload. More specifically, many intermediate states are derived from an image block, and each of them is used to form a one-to-one mapping relationship with a specific sequence of payload bits. In addition, to ensure the visual quality of stego-medical-images, the payload bits are only concealed in the regular blocks and the other blocks are unchanged. Moreover, the smoother regular image block will be priority to be used to embed the payload to enhance the visual quality of stego-medical-image. The experimental results showed that the stego-medical-images generated by the proposed reversible data hiding method have better visual quality with an average PSNR of 47.0307 dB, which is higher than that provided by some state-of-the-art methods. |
format | Online Article Text |
id | pubmed-8270722 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-82707222021-07-22 Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation Su, Guo-Dong Lin, Chia-Chen Chang, Chin-Chen J Healthc Eng Research Article As digitalization becomes more common, patients' concerns about the leakage of private information, such as electronic medical record, are increasing, and those concerns motivated this case study of secure covert communication. Therefore, in this paper, a novel reversible data hiding method based on pixel rotation is proposed for medical images. Using pixel rotation, a state mapping model is constructed to represent the payload. More specifically, many intermediate states are derived from an image block, and each of them is used to form a one-to-one mapping relationship with a specific sequence of payload bits. In addition, to ensure the visual quality of stego-medical-images, the payload bits are only concealed in the regular blocks and the other blocks are unchanged. Moreover, the smoother regular image block will be priority to be used to embed the payload to enhance the visual quality of stego-medical-image. The experimental results showed that the stego-medical-images generated by the proposed reversible data hiding method have better visual quality with an average PSNR of 47.0307 dB, which is higher than that provided by some state-of-the-art methods. Hindawi 2021-07-01 /pmc/articles/PMC8270722/ /pubmed/34306594 http://dx.doi.org/10.1155/2021/5709513 Text en Copyright © 2021 Guo-Dong Su et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Su, Guo-Dong Lin, Chia-Chen Chang, Chin-Chen Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title | Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title_full | Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title_fullStr | Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title_full_unstemmed | Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title_short | Privacy-Preserving Reversible Data Hiding for Medical Images Employing Local Rotation |
title_sort | privacy-preserving reversible data hiding for medical images employing local rotation |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8270722/ https://www.ncbi.nlm.nih.gov/pubmed/34306594 http://dx.doi.org/10.1155/2021/5709513 |
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