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Global-Local Contrast Enhancement

by S. Somorjeet Singh, Th. Tangkeshwar Singh, N. Gourakishwar Singh, H. Mamata Devi
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 54 - Number 10
Year of Publication: 2012
Authors: S. Somorjeet Singh, Th. Tangkeshwar Singh, N. Gourakishwar Singh, H. Mamata Devi
10.5120/8600-2365

S. Somorjeet Singh, Th. Tangkeshwar Singh, N. Gourakishwar Singh, H. Mamata Devi . Global-Local Contrast Enhancement. International Journal of Computer Applications. 54, 10 ( September 2012), 7-11. DOI=10.5120/8600-2365

@article{ 10.5120/8600-2365,
author = { S. Somorjeet Singh, Th. Tangkeshwar Singh, N. Gourakishwar Singh, H. Mamata Devi },
title = { Global-Local Contrast Enhancement },
journal = { International Journal of Computer Applications },
issue_date = { September 2012 },
volume = { 54 },
number = { 10 },
month = { September },
year = { 2012 },
issn = { 0975-8887 },
pages = { 7-11 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume54/number10/8600-2365/ },
doi = { 10.5120/8600-2365 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:55:37.915419+05:30
%A S. Somorjeet Singh
%A Th. Tangkeshwar Singh
%A N. Gourakishwar Singh
%A H. Mamata Devi
%T Global-Local Contrast Enhancement
%J International Journal of Computer Applications
%@ 0975-8887
%V 54
%N 10
%P 7-11
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Using global contrast enhancement, low contrast image can be improved in its quality globally. The enhanced output image, with such type of enhancement, may not have the noise and ringing artifacts. However, it may have over-exposure on some parts of the image and under-exposure on some other parts of the image when too high contrast gain occurs. Besides these, the enhanced output image may lack of local details. On the other hand, using local contrast enhancement, the local details of an image can be better defined. However, local contrast enhancement may produce the output image with noise and ringing artifact when too much contrast gain occurs. Besides these, it may be poor in global contrast. For some images, applying the local contrast enhancement along with global contrast enhancement is much better than that of global contrast enhancement only or local contrast enhancement only.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Global- Local Contrast

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