本程序主要是通过模板匹配的方法来对LED显示模块上的每个灯进行亮度检测。主要是根据模板图像和已知的图像的欧氏距离来进行检测。-This procedure is mainly through template matching method to the LED display module detects the brightness of each lamp. Mainly based on the template image and the known image of the Euclidean distance for testing.