• K.ANUSUDHA

Modern healthcare systems are based on managing diagnostic information of patients through E-health. E-health refers to the Internet enabled healthcare applications involving transacting personal health records or information and other internet based services including e-Pharmacy etc. In this paper, a combination of watermarking and encryption are done for secure transaction of medical images. This method is based on selecting the ROI in the image as the watermark. This portion is encrypted by linear feedback shift register based stream ciphering which is again encrypted by the key generated by Diffie Hellman Algorithm. The encrypted ROI is embedded into the medical image by Spread spectrum technique. From the simulation results,the proposed approach proves to be highly secure as two keys are used for encryption and the secret message is spreaded throughout the Medical image.

Bit Plane Slicing, Region of Interest, Stream Cipher, Diffie-Hellman Algorithm, Spread-Spectrum Watermarking, Peak Signal to Noise Ratio (PSNR)

"ROI based Selective Plane Medical Image Encryption ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.722-726, December-2018, Available :http://www.jetir.org/papers/JETIR1812194.pdf

"ROI based Selective Plane Medical Image Encryption ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp722-726, December-2018, Available at : http://www.jetir.org/papers/JETIR1812194.pdf