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New Technology of Library and Information Service  2005, Vol. 21 Issue (3): 43-44    DOI: 10.11925/infotech.1003-3513.2005.03.10
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A Fast Binarization Method Based on High-Low Pass Filter for Document Image
——The Using of Digital Image Process Technics in Digital Library
Su DongchuChen HepingSun Ping1
1 (The Library of Pingdingshan Normal College, Henan, 467002, China)
2 (College of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, China)
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Abstract  

Binarization is one of the chief technology in digital image processing in library, The quality of the digital books lie on the result of the binarization. This paper introduces a new whole binarization method by using image gray statistical characteristic value as threshold. In the course of the text image processing, the algorithm can automatically realize the threshold segmentation by using the characters of the high-low pass filter based on the histograms of distinct text images. The algorithm has lower time complexity and space complexity, and has been applied in one digital library system.

Key wordsDigital image      Binarization      Threshold      High-Pass filter      Low-Pass filter     
Received: 15 October 2004      Published: 25 March 2005
ZTFLH: 

G250.76

 
Corresponding Authors: Su Dongchu     E-mail: xmz117323@sina.com.cn
About author:: Su Dongchu,Chen Heping,Sun Ping

Cite this article:

Su Dongchu,Chen Heping,Sun Ping. A Fast Binarization Method Based on High-Low Pass Filter for Document Image
——The Using of Digital Image Process Technics in Digital Library. New Technology of Library and Information Service, 2005, 21(3): 43-44.

URL:

http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.1003-3513.2005.03.10     OR     http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2005/V21/I3/43

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