Hiding patient information in medical images : an encrypted dual image reversible and secure patient data hiding algorithm for E-healthcare

Abstract

E-healthcare framework requires transfer of patient report to a specialist in a real time framework. Subsequently, any damage to patient information can prompt a wrong diagnosis that can be deadly for the patient. To guarantee a secure communication in E-healthcare framework, a high capacity dual image reversible data hiding algorithm has been presented in this paper. Highlight of proposed method is to embed $\lfloor \log _{2}(2 \times n+1) \times NZ -1 \rfloor$ binary bits of patient information whereas no overflow problem has occurred during embedding process. For authentication analysis of electronic patient information (EPI) at recipient end, a fragile watermark has also been embedded with EPI respectively. To prove the effectiveness of proposed method, experiments have been performed on different test images. The average embedding rate of 2.36 bpp for all test images which demonstrates that the method is capable for embedding high payload in comparison of others respectively.