Estimation of optimal threshold values in algorithms of wavelet filtration of images

A new algorithm is proposed for estimating optimal threshold values in thresholding algorithms of wavelet filtration of signals and images. Numerous computational experiments are performed to compare this threshold with threshold values widely used in wavelet filtration algorithms. Application of th...

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Bibliographic Details
Published inOptoelectronics, instrumentation, and data processing Vol. 47; no. 2; pp. 105 - 113
Main Authors Voskoboinikov, Yu. E., Gochakov, A. V.
Format Journal Article
LanguageEnglish
Published Heidelberg Allerton Press, Inc 01.04.2011
Subjects
Analysis and Synthesis of Signals and Images
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
locally spatial filters
filtration of images
wavelet filtration
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Summary:A new algorithm is proposed for estimating optimal threshold values in thresholding algorithms of wavelet filtration of signals and images. Numerous computational experiments are performed to compare this threshold with threshold values widely used in wavelet filtration algorithms. Application of the proposed threshold is demonstrated to ensure substantial reduction of the filtration error of both smooth and high-contrast images.
ISSN:8756-6990
1934-7944
DOI:10.3103/S8756699011020014