基于色彩转换和投影的车牌定位方法  

A Method of Vehicle License Plate Location Based on Color Change and Projection

作　　者：王传琦[1] 张建[1] 闫晓东[1] 刘佳宇[1] 

机构地区：[1]河北理工大学信息学院,河北唐山063009

出　　处：《淮阴工学院学报》2008年第1期38-40,共3页Journal of Huaiyin Institute of Technology

摘　　要：为了设计出一种能够快速自动识别定位车牌的方法,首先对获得的彩色车牌图像进行灰度化和二值化,然后对经二值化处理的车牌图像进行水平和垂直投影,同时充分利用车牌的几何特征,共同完成车牌的区域定位。经VC++验证表明,该方法定位速度快,定位精度较好。The chief concern of the paper is to research a method for automatically recognizing and locating Vehicle -license -plate quickly. Firstly, the method changes the color image into gray image and the binarizing image. After that, the license plate in the binarizing image is processed by using projection technique in both horizontal and vertical directions, and at the same time, the area of license - plate is located by mostly using its geometrical characters. By using VC ＋ ＋ as the testing tool, the result shows that this method is good in real time and accurate in location.

关 键 词：车牌定位 彩色 二值化 投影 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]