A Novel Blend of DWT and SVD for MedicalImages Using Digital Watermarking

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Mamtha H K¹  Dr Sujatha B K² 

[1] Department of ECE, M S Ramaiah Institute of Technology;Department of TCE, M S Ramaiah Institute of Technology

关键词: Discrete Wavelet Transform;    Singular Value Decomposition;    Watermarking;    Peak signal to noise ratio;    Mean Square Error;    Normalized Cross Correlation;   

DOI  :  10.15662/ijareeie.2014.0309032

来源: Research & Reviews

【 摘 要 】

A reliable medical image management must ensure proper safeguarding of the medical images while maintaining high dependability. Safeguarding the medical information of the patients is a major concern in all hospitals Also one should be able to verify that information belongs to the correct patient and is issued from the right source. Digital watermarking is a technique popularly used to protect the confidentiality of medical information particularly images. In this paper we propose a novel blend of Digital Wavelet Transform (DWT) and Singular Value Decomposition (SVD) for watermarking the medical images. SVD is applied to the approximate and vertical coefficients of the wavelet transform in order to improve medical image protection in terms of peak signal to noise ratio(PSNR), Mean Square Error(MSE) and Normalized Cross-correlation(NC) between original and watermarked images.

【 授权许可】

Unknown