在C++控制台程序中调用OpenCV类库中的Mat类，打开一张图片 运行此程序之前需要到OpenCV中文网下载安装OpenCV相关的运行环境并配置-OpenCV library in C++ call, open a picture before you run this program needs to download and install OpenCV OpenCV Chinese network related operating environment and configura

我们要指定一个函数（回调函数），视频序列的每一帧都会调用它。该函数定义为输入一个mat视力，输出一个处理完毕的帧。(vs c++ use opencv to image canny)