A Novel and Secure 3D Colour Medical Image Encryption Technique Using 3D Hyperchaotic Map, S-box and Discrete Wavelet Transform.

This study proposes an efficient approach to enhance the security of medical image transmission by transforming the ciphertext image into a visually meaningful image using a 3D hyperchaotic system and employs discrete wavelet transform (DWT) to transform ciphertext image into a visually meaningful image.