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Academic Journal of Computing & Information Science, 2019, 2(2); doi: 10.25236/AJCIS.010037.

Research on Blob Analysis Algorithm-based Segmentation of Characters in License Plate


Chunhui Han, Zhao Chen*

Corresponding Author:
Zhao Chen

School of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China
* [email protected]


A license plate character segmentation method based on Blob analysis algorithm is proposed to improve the precision of license plate character segmentation. Firstly, the Blob analysis algorithm is combined with the prior knowledge of license plate characters to perform rough segmentation of characters. Secondly, using vertical projection method to achieve the fine segmentation of the characters. Experimental results show that the algorithm can effectively and practicability solve the problem of segmentation and characters cohesion of disconnected Chinese characters.


Image processing; License plate character segmentation; Blob analysis algorithm; Connected domain; Vertical projection method.

Cite This Paper

Chunhui Han, Zhao Chen. Research on Blob Analysis Algorithm-based  Segmentation of Characters in License Plate. Academic Journal of Computing & Information Science (2019), Vol. 2, Issue 2: 39-48. https://doi.org/10.25236/AJCIS.010037.


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