基于车牌色彩变化特征的车牌定位方法  

Method to locate vehicle license plate based on characteristic of color variation

作　　者：陈昌涛[1,2] 张玲[1] 何伟[1] 李刚[3] 

机构地区：[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

出　　处：《计算机应用研究》2008年第12期3654-3655,共2页Application Research of Computers

基　　金：重庆市九龙坡区科委科技计划资助项目(2007Q76)

摘　　要：针对复杂背景下的车牌定位问题,提出了一种基于车牌色彩变化特征的车牌定位方法。该定位方法将RGB彩色空间中的车牌图像转换到HSV彩色空间中进行颜色识别,分割出车牌底色及字符颜色相对应的颜色区域,同时通过边缘提取、二值化处理、与运算找到对应颜色边缘特征点,最后经纹理分析来定位车牌。To locate the vehicle license plate with complicated background, this paper proposed a method based on characteristic of color variation. To distinguish different color area, transformed the color figure from RGB color space to HSV color space. Then in HSV space, distilled the area which color was same to the plate background, and picked up the area which color was same to the plate characters, too. Next, obtained via edge extraction, binarization, and AND operation, the color edge. At last, by texture analysis, could locate the vehicle license plate.

关 键 词：车牌 色彩变化特征 纹理分析 定位 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]