Enhancing Secure Medical Image Transmission Using Visually Meaningful Medical Image Encryption

Medical images are transmitted to the remote location in a secure manner using medical image encryption. Conventional medical image encryption generates an unfamiliar image format that looks like noise or texture structure, which shows that the encrypted medical image contains secret information. Hence, the attacker aware of the visual existence of the secret image. To safeguard the visual appearance of the encrypted image, this paper proposed a visually meaningful medical image encryption based on Substitution and Permutation Network (SPN) structure. Performance analysis shows that the proposed methodology performs exceptionally well with various performance measures are considered.