This m-file implements a simple data acquisition gui with multiple channels and custom triggering It demonstrates how to: 1) Use nested functions to simplify data acquisition programs 2) Use a simple GUI (a couple of pushbuttons) to

一个完整的车牌识别系统闭应包括车辆检测、图像采集、图像预处理、车牌定位、字符分割、字符识别等单元。当车辆到达触发图像采集单元时，系统采集当前的视频图像。车辆识别单元对图像进行处理，定位出牌照位置，再将车牌中的字符分割出来进行识别，然后组成车牌号码输出。(A complete license plate recognition system should include vehicle detection, image acquisition, image preprocessing, licen