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Encryption and watermark-treated medical image against hacking disease-An immune convention in spatial and frequency
C Lakshmi1, K Thenmozhi1, John Bosco Balaguru Rayappan1
1School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur 613 401, India.
Abstract:
Digital Imaging and Communications in Medicine (DICOM) is one among the significant formats used worldwide for the representation of medical images. Undoubtedly, medical-image security plays a crucial role in telemedicine applications. Merging encryption and watermarking in medical-image protection paves the way for enhancing the authentication and safer transmission over open channels. In this context, the present work on DICOM image encryption has employed a fuzzy chaotic map for encryption and the Discrete Wavelet Transform (DWT) for watermarking. The proposed approach overcomes the limitation of the Arnold transform-one of the most utilised confusion mechanisms in image ciphering. Various metrics have substantiated the effectiveness of the proposed medical-image encryption algorithm.
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