Secure Transmission in Telemedicine

Abstract

The growing number of medical digital images necessitates their secure sharing among specialists and hospitals while protecting patient privacy. To achieve this, medical image watermarking is essential. However, the watermarking process must be carefully executed for two key reasons. Firstly, it should not compromise image quality. Secondly, confidential patient information embedded in the image should be reliably retrievable even after decompression. Despite extensive research in this area, no existing method fulfills all requirements of medical image watermarking. This study aims to address this gap by providing a comprehensive survey of different methods, including DWT with SVD and spread spectrum, analyzing their strengths and weaknesses, and offering valuable insights to researchers.