DocumentCode
2021713
Title
Adaptive Window Based Uneven Lighting Document Segmentation
Author
Gu, Guoqing ; Han, Wenwen
Author_Institution
East China Normal Univ., Shanghai
Volume
1
fYear
2007
fDate
23-26 Sept. 2007
Firstpage
223
Lastpage
226
Abstract
The method presented in this paper has two noteworthy aspects. First, in order to improve segmentation quality, sub-pixel interpolation using quadratic curve fitting is performed. Second, adaptive widow for thresholding is done in a novel way. The variance of gray value in each widow is used both for widow size choosing and grayscale thresholding. Experiment results show that this segmentation algorithm is suitable for treating document images of uneven lighting.
Keywords
curve fitting; document image processing; image segmentation; interpolation; adaptive window; grayscale thresholding; quadratic curve fitting; sub-pixel interpolation; uneven lighting document image segmentation; Books; Curve fitting; Digital cameras; Gray-scale; Image segmentation; Information science; Interpolation; Partitioning algorithms; Pixel; Size measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Document Analysis and Recognition, 2007. ICDAR 2007. Ninth International Conference on
Conference_Location
Parana
ISSN
1520-5363
Print_ISBN
978-0-7695-2822-9
Type
conf
DOI
10.1109/ICDAR.2007.4378708
Filename
4378708
Link To Document