这段代码主要是用于连通性的处理，输入一幅灰度图像，程序将其转化为二值图像，并根据设定的联通阈值进行连通个数的统计。-This code is mainly used for the handling of connectivity, input a grayscale image, the program will convert it into binary images, and in accordance with thresholds set Unicom, the number of