车牌定位识别程序，算法为先对车牌图进行灰度化，接着二值化，找点，然后定位矩形车牌，最后标出车牌位置。这个程序为图象处理的有一个经典的实例-plates positioning identification procedures, the algorithm first pair of plates map Gray, then two values, find the point and positioning rectangular plates, plates marked the fina