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A comparative analysis of PSNR value for images using wavelet based thresholding methods

Md Taujuddin, Nik Shahidah Afifi and Ibrahim, Rosziati and Sari, Suhaila (2014) A comparative analysis of PSNR value for images using wavelet based thresholding methods. In: Proceeding of Malaysian Technical Universities Conference on Engineering & Technology (MUCET 2014), 10-11 November 2014, Melaka, Malaysia.

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Abstract

Thresholding is a process of shrinking the small absolute coefficients value while retaining the large absolute coefficient value. It will produce finer reconstruct signal. Since this method is taking the condition that the amplitude of wavelet transform coefficients signals are much larger than noises, so the unconsidered noise will be removed while holding the significant signal. This paper examine several thresholding methods namely VisuShrink (Hard Threshold), VisuShrink (Soft Threshold), BayesShrink, OTW SURE-LET and NeighShrink SURE. These five methods are implemented on standard test images and medical images to perceive its’ different performance based on the Peak Signal-to-Noise Ratio (PSNR) value.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: wavelet; thresholding; Peak Signal to Noise Ratio (PSNR)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1501-1820 Applied optics. Photonics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Computer Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Dec 2014 08:38
Last Modified: 23 Dec 2014 08:38
URI: http://eprints.uthm.edu.my/id/eprint/6243
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