A review of secure medical image watermarking

The advanced development in the field of web technology has enabled to use medical images and Electronics Patient Record (EPR) in the healthcare sector for the purpose of sharing patient information between networked hospitals and healthcare centers. As an EPR may carry important information which requires the guarantee of security, authenticity and management of medical images and information through storage and distribution. Digital watermark can be considered as an efficient technology to address the difficulties of unauthorized access of medical content which is to be distributed on the internet. The watermarking techniques are growing to protect the medical healthcare information. This is a technique for embedding the EPR information in the medical image to save storage space and transmission overheads and to guarantee security of the medical content which is to be shared over the network. In this paper, we have given the review of several approaches which has been proposed by various authors.