ROI Recovery for Medical Images using FRT-based Watermarking Technique

The recent evolutions in technology and globalization impacted a lot in the field of medicine. This evolved in communicating medical images among medical practitioners, patients and analysts through wired or remote networks for having better diagnosis medically. To accomplish this diagnosis as the best, the Region of Interest (ROI) of medical image is focused a lot by practitioners. This ROI may get affected by intruders during transmission of images. The receiver must recuperate the ROI of image when it gets tampered by an intruder. The data of ROI is hidden into RONI (Region of Non-Interest) of medical image in order to recuperate the ROI of medical image when it gets interfered or disturbed. More data has to be concealed in the RONI of the image when the size of the ROI is large. This paper proposes a watermarking scheme based on Finite Ridgelet Transform (FRT) which supports high embedding capacity. This proposed method recuperates ROI when it gets tampered by an intruder during transmission of medical image by concealing data of whole ROI in RONI.