DocumentCode
3764664
Title
On the realization of robust watermarking system for medical images
Author
Shabir Ahmad Parah;Farhana Ahad;Javaid Ahmad Sheikh;G. Mohiuddin Bhat
Author_Institution
Post Graduate Department of Electronics & IT, University of Kashmir, Srinagar, India
fYear
2015
Firstpage
1
Lastpage
5
Abstract
A medical image watermarking system based on Discrete Wavelet Transform (DWT) has been presented in this paper. Before watermark embedding, a medical image is subjected to global DWT. Haar wavelet has been used for this purpose. The LH sub band has been divided into 8×8 blocks. The coefficients of each 8×8 (LH) block are compared and if necessary swapped to embed either binary digit `1´ or `0´. The scheme has been evaluated using various image quality matrices like Peak Signal to Noise Ratio (PSNR), Structural Similarity Index (SSIM) Bit Error Rate (BER) and Normalized Cross Co-relation (NCC). It has been observed that the proposed technique is capable of producing high quality watermarked images, besides being more robust as indicated by comparison results.
Keywords
"Watermarking","Biomedical imaging","Bit error rate","Robustness","Computed tomography","Magnetic resonance imaging","Discrete wavelet transforms"
Publisher
ieee
Conference_Titel
India Conference (INDICON), 2015 Annual IEEE
Electronic_ISBN
2325-9418
Type
conf
DOI
10.1109/INDICON.2015.7443363
Filename
7443363
Link To Document