DocumentCode
1799491
Title
Wavelet based contrast enhancement for still images
Author
Nafornita, C. ; Isar, Alexandru
fYear
2014
fDate
14-15 Nov. 2014
Firstpage
1
Lastpage
4
Abstract
This paper presents a fast and simple contrast enhancement technique, that uses the Dual-Tree Complex Wavelet transform (DTCWT), coupled with the bivariate Laplace model for local adaptive contrast improvement. In order to overcome the noise amplification that results from nonlinear operations especially in the homogeneous areas of the image, denoising using bishrink filter in the DTCWT domain is used.
Keywords
Laplace transforms; image denoising; wavelet transforms; DTCWT domain; bishrink filter; bivariate Laplace model; contrast enhancement technique; denoising; dual-tree complex wavelet transform; local adaptive contrast improvement; noise amplification; nonlinear operations; still images; Entropy; Noise; Noise reduction; Standards; Wavelet coefficients; complex wavelets; contrast enhancement; denoising; still images;
fLanguage
English
Publisher
ieee
Conference_Titel
Electronics and Telecommunications (ISETC), 2014 11th International Symposium on
Conference_Location
Timisoara
Print_ISBN
978-1-4799-7266-1
Type
conf
DOI
10.1109/ISETC.2014.7010797
Filename
7010797
Link To Document