Efficient high capacity technique to embed EPR information and to detect tampering in medical images.

Reversible data hiding (RDH) is one of the well-known and highly recommended method to enhance medical data security or electronic patient record (EPR), privacy and truthfulness. In clinical images, while hiding the data, care must be taken to maintain the confidentiality of the information that is to be hidden within the clinical images because the hidden information should not bring down the original quality of the image. Mostly, the investigations carried out for medical diagnosis are usually constructed on the basis of investigation systems used for diagnosis and are grounded on the images usually used for medical study. Magnetic resonance image (MRI), CR and CT, digital format images which are acquired are related to the patient's data and information regarding their diagnosis study. In this presented approach, we introduce an RDH scheme that can also be combined with encryption and reversible watermarking techniques. Here, we use the data related to the patient diagnosis as the secret information to embed in medical images. Quality of the marked image after embedding the data is usually measured with metrics that are usually used in image processing such as PSNR and SSIM.