汽车牌照的自动识别系统是一种应用于公路交通管理和收费的智能监控系统 .文中提出了基于形态学处理定位牌照图象的区域的方法 .该方法与其它方法相比对图象没有严格的限制和要求 .三层反馈神经网络用来识别和分类 ,实验证明该方法是有效的 Auto License Plate Recognition System is a kind of intelligent monitoring system applied to highway traffic management and charging.This paper presents a method based on morphological processing to locate the area of ​​the license plate image.This method is not strict with other methods Constraints and requirements.Three layers of feedback neural networks are used to identify and classify, the experiment proves that the method is effective