Medical Image Privacy Using Watermarking Techniques

Abstract

The amount of digital medical images has increased rapidly in the Internet. The necessity of fast and secure diagnosis is vital in the medical world. Nowadays, the transmission of images is a daily routine and it is necessary to find an efficient way to transmit them over the net. In this project we propose a new technique to cipher an image for safe and denoised transmission. The existing research deals with image cryptography, data hiding and steganography. There are several methods to encrypt binary or grey level images. Watermarking can be an answer to make secure image transmission. For applications dealing with images, the watermarking objective is to embed invisibly message inside the image. To embed the encrypted image in the patient information we have used watermarking technique. In this project, we concentrate to solve the privacy violation problem occurred when images are published on the medical applications without the permission. According to such images are always shared after uploading process. Therefore, the digital image watermarking based on DWT co-efficient. Watermark bits are embedded in uploaded images. Watermarked images are shared in user home page. So images can be difficult to misuse by other persons. In receiver side when the message is arrived then we apply the inverse methods in reverse order to get the original image and patient information and to remove watermark we extract the image before the decryption of message. We have applied and showed the results of our method to medical images.