Securing Medical Images by Watermarking Using DWT DCT and SVD
This addresses security issues like confidentiality and integrity for medical images in telemedicine, but it appears incremental as it builds on existing watermarking techniques.
The paper tackles the problem of securing medical images in telemedicine by proposing a blind watermarking method using DWT, DCT, and SVD, which is shown to perform better than a DWT and SVD-based method, though no concrete numbers are provided.
Telemedicine is well known application where enormous amount of medical data need to be transferred securely over network and manipulate effectively. Security of digital data, especially medical images, becomes important for many reasons such as confidentiality, authentication and integrity. Digital watermarking has emerged as a advanced technology to enhance the security of digital images. The insertion of watermark in medical images can authenticate it and guarantee its integrity. The watermark must be generally hidden does not affect the quality of the medical image. In this paper, we propose blind watermarking based on Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD), we compare the performance of this technique with watermarking based DWT and SVD. The proposed method DWT, DCT and SVD comparatively better than DWT and SVD method.