基于matlab的车牌识别算法论文大学毕设论文.doc

基于 Matlab 的车牌识别算法 1 基于 Matlab 的车牌识别算法摘要车牌系统是计算机视觉和模式识别技术在智能交通领域的重要应用课题之一。车牌识别系统是以特定目标为对象的专用计算机系统,该系统主要包括三个内容:车牌定位、字符分割和字符识别。其中车牌定位的目的就是从所拍摄的汽车图像中确定车牌的位置, 从而便于后续的字符分割和字符识别工作。目前常用的方法有:基于模板匹配的方法、基于特征的方法和神经网络法等。本设计采用基于模板匹配算法和基于人工神经网络算法对车牌进行定位识别,此算法只对蓝底白字车牌进行分割识别,对黑底白字车牌原则上整个算法可直接适用,。此算法分割出的图像像素值和模板图像达到了一致,由此便避免了切割出的图像像素值不一致所带来的问题。但对白底黑字车牌、黄底黑字车牌, 需要对车牌定位算法进行调整,并将图像反转( 0变1、1变0)。关键词:车牌识别系统; 字符分割; 车牌定位基于 Matlab 的车牌识别算法 2 LICENSE PLATE RECOGNITION ALGORITHM BASED ON MATLAB ABSTRACT License plate system puter vision and pattern recognition technology in one of the important application research topic in the field of intelligent transportation. License plate recognition system based on specific goals ofa puter system, the system mainly includes three contents: license plate locating, character segmentation and character recognition. One of the purpose of license plate location is taken from the auto locate the license plate in the image, so as to facilitate the subsequent work character segmentation and character recognition. monly used methods are: based on template matching method, based on the characteristics of the method and work, etc. This design USES based on template matching algorithm and based on artificial work algorithm to locate license plate recognition, the algorithm is only for blue white license plate segmentation recognition, the algorithm can be directly applicable in principle to the black white plate,. This algorithm to segment the image pixel values and template image, thus to avoid the cut out in the process of image pixel values are not consistent. But black on white background and black text plate, yellow bottom plate, adjustments need to license plate localization algorithm, and the image inversion of (0, 1,1, 0). Key words : license plate recognition system; Character segmentation; License plate location 基于 Matlab 的车牌识别算法 3 目录 1前言.........................................................................................................................