说明：  模板匹配就是在一副大图像中搜寻目标，已知该图中有要找的目标，且该目标同模板有相同的尺寸、方向和图像元素，通过一定的算法可以在图中找到目标，确定其坐标位置。，过程很完整。
(Template matching is to search for a target in a large image. It is known that there is a target to be found in the image, and the target has the same dimension, direction and image elements as the template. By certain algorithm, the target can be found in the graph and its coordinate position can be determined.)