Research on application of character edge color AND logic on vehicle plate location

doi:10.3778/j.issn.1002-8331.2009.18.062

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (18): 209-211.DOI: 10.3778/j.issn.1002-8331.2009.18.062

• 工程与应用 • Previous Articles Next Articles

Research on application of character edge color AND logic on vehicle plate location

CHEN Chang-tao^1,2,LI Gang³,WEI Min²,LI Hong²,LI Cai-you²

1.College of Communication Engineering，Chongqing University，Chongqing 400044，China
2.Sichuan Chemical Technical College，Luzhou，Sichuan 646000，China
3.College of Computer，Chongqing Institute of Technology，Chongqing 400050，China

Received:2008-10-15 Revised:2009-01-12 Online:2009-06-21 Published:2009-06-21
Contact: CHEN Chang-tao

字符边缘颜色与逻辑在车牌定位中的应用研究

陈昌涛^1,2,李刚³,魏民²,李宏²,李才有²

1.重庆大学通信工程学院，重庆 400044
2.四川化工职业技术学院，四川泸州 646000
3.重庆工学院，重庆 400050

通讯作者: 陈昌涛

Abstract

Abstract: Aiming to the location of vehicle license plate in complex circumstance，this paper presents a fast plate location method which utilizes logic AND operation to character edge color.It converts the plate image in RGB color spaces into HSV color spaces，and by binarization each pixel’s color to acquire character edge color area，then by their logic AND operation to get the image’s character color edge，at last by texture analysis to locate the plate，so it can solve the problem of popular location methods in common use.

Key words: vehicle license plate, character edge color variation feature, logical AND operation, texture analysis, location

摘要： 针对复杂背景下的车牌定位问题，提出了一种基于字符边缘颜色与逻辑的快速车牌定位方法。该定位方法将RGB彩色空间中的车牌图像，转换到HSV彩色空间中。根据像素点颜色进行二值化，得字符边缘颜色像素区，同时通过逻辑与，确定图像字符颜色边缘点，最后经纹理分析来定位车牌，解决了目前常用流行算法所不能处理的定位问题。

关键词: 车牌, 字符边缘颜色变化特征, 与逻辑, 纹理分析, 定位

CHEN Chang-tao^1,2,LI Gang³,WEI Min²,LI Hong²,LI Cai-you². Research on application of character edge color AND logic on vehicle plate location[J]. Computer Engineering and Applications, 2009, 45(18): 209-211.

陈昌涛^1,2,李刚³,魏民²,李宏²,李才有². 字符边缘颜色与逻辑在车牌定位中的应用研究[J]. 计算机工程与应用, 2009, 45(18): 209-211.

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Research on application of character edge color AND logic on vehicle plate location

字符边缘颜色与逻辑在车牌定位中的应用研究

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