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An improved reversible data hiding method in encrypted domain for E-healthcare

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Abstract

In current scenario, patient data privacy and security is one of the most significant challenge for telemedicine applications. A minute change to Electronic Patient Information (EPI) may result in wrong diagnosis to the patient. With the aim to ensure secure and safe communications for telemedicine applications, an enhanced reversible data hiding technique in encrypted domain to embed secret message in hexadecimal form by embedding four binary bits of EPI in each block of cover image has been presented in this paper. The proposed algorithm has not been suffering from underflow and overflow problem so that empowering it to embed and recover information precisely from low intensity pixels too. This property makes our proposed methodology truly reasonable for its utilization on medical images. For all test images, the proposed methodology beated all the compared methodologies in its embedding capability with maintaining the visual quality of stego images too.

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Data Availability

The experimental study has been carried out using MATLAB R2017a platform for different 512 × 512 test images obtained from open-source image database (USC-SIPI) whereas medical images obtained from the database of The Cancer Imaging Archive (TCIA) respectively.

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Authors and Affiliations

  1. Computer Science and Engineering Department, Thapar Institute of Engineering and Technology, Patiala, Punjab, India

    Rupali Bhardwaj

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  1. Rupali Bhardwaj
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Correspondence to Rupali Bhardwaj.

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Bhardwaj, R. An improved reversible data hiding method in encrypted domain for E-healthcare. Multimed Tools Appl 82, 16151–16171 (2023). https://doi.org/10.1007/s11042-022-13905-w

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  • DOI: https://doi.org/10.1007/s11042-022-13905-w

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