Study and Analysis of Digital Watermarking for Medical Images

In the recent years, Internet users are increased tremendously. Hence, it demands a secure communication for different Internet services. Data sharing such as audio, video, image and documents are an integral part, which needs to be secure during transmission. In healthcare applications, the patient's information requires security and integrity during transfer of data from one place to another. The watermarking techniques can improve data protection and content enrichment of medical images. In this article, the literature study is carried out to show the frequency domain techniques are more robust than spatial domain. Apart from this, a brief and comparative analysis of watermarking technique with different image size is presented to show the trade-off between capacity and perceptibility of the image.