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RONI Medical Image Watermarking using DWT and RSA

International Journal of Computer Applications
© 2014 by IJCA Journal
Volume 96 - Number 9
Year of Publication: 2014
Neha Solanki
Sanjay Kumar Malik
Sonam Chhikara

Neha Solanki, Sanjay Kumar Malik and Sonam Chhikara. Article: RONI Medical Image Watermarking using DWT and RSA. International Journal of Computer Applications 96(9):30-35, June 2014. Full text available. BibTeX

	author = {Neha Solanki and Sanjay Kumar Malik and Sonam Chhikara},
	title = {Article: RONI Medical Image Watermarking using DWT and RSA},
	journal = {International Journal of Computer Applications},
	year = {2014},
	volume = {96},
	number = {9},
	pages = {30-35},
	month = {June},
	note = {Full text available}


In this paper, the proposed work is about to store the patient information in the medical image itself that can be a CT scan or the MRI image. Medical records are extremely sensitive patient information and require uncompromising security during both storage and transmission. In the traditional way, the patient information and patient test reports are kept in different tables or databases or locations. But, this kind of data management can have some human oriented errors such as transfer of wrong report to a patient. Errors can be prevented by hiding the data in scan report itself. It will improve the reliability of the medical information system. In our paper the work is divided in two main stages, first to identify the ROI and RONI of the image. Here, the ROI is defined in terms of information part of medical image and RONI is defined in terms of non-information part of the MRI image. It will avoid the user to destroy the valuable information from the image. Watermark is encrypted by using RSA. The second stage is about to hide the image in RONI. A DWT based approach is used to hide such information.


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