Wavelet Based Medical Image Watermarking Scheme for Patient Information Authenticity

Yıl 2016, , 220 - 223, 01.12.2016

Gökçen Çetinel , Lukman Çerkezi

https://doi.org/10.18100/ijamec.270334

Cited By: 2

Öz

Telemedicine is an important technique that permits transmission of
medical and imaging data from one place to other, ensures the reliability of
data and provides a convenient communications between patient and medical
staff. In this study, Discrete Wavelet Transform (DWT) and Singular Value
Decomposition (SVD) based medical image watermarking method that hides the
patient information into medical image without affecting the image quality is
proposed for the purpose of authentication. At the watermark (secret image
containing patient information) embedding process, a chaotic map called as
Arnold Cat Map (ACM) is applied to the watermark to improve the security of the
method.  So that the aim of the proposed
watermarking scheme is personal authentication by ensuring the perceptual
invisibility, PSNR (Peak Signal-to-Noise Ratio) values are calculated during
the simulations. According to the experimental results, we can say that the
proposed method provides higher PSNR values than compared current methods.
Furthermore, in simulations DWT and SVD based watermarking scheme is
implemented as chaotic and non-chaotic watermarking scheme to investigate the
effect of chaotic map on the performance of the proposed algorithm. 

Anahtar Kelimeler

Medical image watermarking, discrete wavelet transform, singular value decomposition

Kaynakça

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