Title :
Binarization Algorithm of Passport Image Based on Global Iterative Threshold and Local Analysis
Author :
Wang, Zhiwen ; Li, Shaozi ; Su, Songzhi ; XIE, Guoqing
Author_Institution :
Dept. of Comput. & Eng., Guangxi Univ. of Technol., Liuzhou, China
Abstract :
A global binarization methods of the passport image based on global iterative threshold and local analysis is put forward in this paper after several binarization algorithms of document image are deeply studied according to the characteristics that passport image documents are obviously affected by the complex image background and the shading grid security-lines. Model of the method is simple, and easy to implement, can filter out noise availably. The character strokes can segmented from the background clearly.
Keywords :
image resolution; image segmentation; iterative methods; binarization algorithm; complex image background; global iterative threshold; local analysis; passport image documents; shading grid security-lines; Algorithm design and analysis; Background noise; Gray-scale; Histograms; Image analysis; Inspection; Interference; Iterative algorithms; Iterative methods; Lighting; binarization; image; iterative threshold; location analysis;
Conference_Titel :
Information Management, Innovation Management and Industrial Engineering, 2009 International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-0-7695-3876-1
DOI :
10.1109/ICIII.2009.65
