中文说明：斑点检测程序，可以用来检测斑点的大小，通过设置阈值的大小，可以检测出不同的斑点。通过本程序，可以了解到图像检测的一般流程，同时本程序可以应用到工业或农业中的污点检测中去，具有一定的实际意义。
English Description：
Spot testing procedures, spots can be used to detect the size of the, by setting the threshold size of the can detect a variety of spots. Through this process, the common process of image can be found, and this procedure can be used in industrial or agricultural to stain detection, has some real significance.