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Effective color distortion and noise reduction for unsharp masking in LCD

Authors
Lee, Kwang-WookKim, You-SunPark, Sang-HeeSuryantoKo, Sung-Jea
Issue Date
8월-2008
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
adaptive unsharp masking; energy dispersion; color distortion; liquid crystal displays; human visual system
Citation
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.54, no.3, pp.1473 - 1477
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume
54
Number
3
Start Page
1473
End Page
1477
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122934
DOI
10.1109/TCE.2008.4637643
ISSN
0098-3063
Abstract
Unsharp masking is a popular image enhancement technique used to sharpen the image appearance in gray images. When applied to the color image, unsharp masking tends to introduce color distortion. In this paper, we propose a novel unsharp masking technique which can sharpen the image appearance without distorting the color and amplifying the noise. The proposed algorithm exploits the characteristics of the human visual system to control the level of sharpening and uses the energy dispersion filter to remove the color distortion. Experimental results show that our proposed algorithm successfully produces sharpened images that are free of noise and color distortion commonly found in conventional unsharp masking algorithm(1).
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