寻找一幅图像的匹配的模板，可以在一段视频里寻找出我们感兴趣的东西，比如条形码的识别就可能需要这样类似的一个工作提取出条形码区域-Looking for a template that matches the image, you can look out over the video we are interested in things, such as barcodes might need such a task similar to extract barcode area