基于GUI图形处理系统的车牌识别  

License Plate Recognition Based on GUI Image Processing System

作　　者：孙淳 SUN Chun(School of Computer Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学计算机科学与工程学院,山东青岛266590

出　　处：《软件导刊》2021年第2期210-214,共5页Software Guide

基　　金：国家重点研发计划项目(2017YFC0804406);山东省重点研发计划项目(2016ZDJS02A05)。

摘　　要：为改进车牌识别的精确度,在MATLAB平台下通过GUI图形用户界面,调用相应算子与算法对图像进行调整与优化。通过对图像进行粗定位、灰度化、倾斜矫正、二值化处理等对车牌图像进行预处理,并利用阈值分割、形态学处理等方法进行车牌定位。对多种算法进行比较,选择适当的图像处理方法,结合投影函数分割图像,以及图像矩归一化法实现字符归一化、语音播报车牌识别结果等功能,共同组成车牌识别系统。测试结果表明,该系统对车牌识别的精确度由95%提高到96.5%,识别性能较好。In order to improve the accuracy of license plate recognition,through GUI graphical user interface in MATLAB,the corresponding operator and algorithm are employed to adjust and optimize the image.The license plate image is preprocessed by rough location,graying,tilt correction and binarization.The license plate image is located by threshold segmentation and morphological processing.After a variety of algorithm comparison,the appropriate image processing method is selected.The license plate recognition system is composed of projection function,image moment normalization and voice broadcast.The accuracy of the system to license plate recognition has been improved from 95%to 96.5%with better recognition performance.

关 键 词：GUI 图像处理 车牌识别 语音播报 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]