DocumentCode
1248650
Title
Image contrast enhancement based on the piecewise-linear approximation of CDF
Author
Kim, Sang-Yeon ; Han, Dongil ; Choi, Seung-Jong ; Park, Jong-Seok
Author_Institution
DTV Res. Labs., LG Electron. Inc., Seoul, South Korea
Volume
45
Issue
3
fYear
1999
fDate
8/1/1999 12:00:00 AM
Firstpage
828
Lastpage
834
Abstract
We present a new image contrast enhancing method based on the piecewise-linear approximation of the cumulative density function (CDF). Reduced hardware is required for CDF calculation, since the number of bins is greatly reduced thanks to this approximation. With the proposed method, various contrast enhancing effects can be implemented such as histogram equalization, partial or entire histogram modification
Keywords
function approximation; image enhancement; image sequences; piecewise linear techniques; video signal processing; CDF; contrast control tool; cumulative density function; digital image display devices; histogram equalization; histogram modification; image contrast enhancement; image sequence; moving picture transmission/receiving systems; piecewise-linear approximation; video conference; Brightness; Consumer electronics; Controllability; Digital TV; Hardware; Histograms; Piecewise linear approximation; Piecewise linear techniques; Pixel; Videoconference;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.793618
Filename
793618
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