由鼠标左右键控制图形小球移动 点左键 小球移向鼠标点击位置，点右键 停止运动-Graphics by the mouse left key control point of the ball moving the ball move left mouse click position, point right to stop movement

基于opencv的两个摄像头数据采集.实现功能：同时采集两路USB摄像头数据，并显示，具有图片保存功能（点击左键保存图片，并暂停视频；右键继续视频）。-Opencv-based data acquisition of two cameras. Functions: simultaneous acquisition of two-way USB camera data, and save the picture (click the left mouse button to save the im

读入一张图片，然后通过鼠标点击截取图片上的位置，截取右下方的小图像块，并保存小图像块，其中截取的图像块宽度和高度可调。 (配置环境：OpenCV和vs2010)-Read into the picture, then click the interception position the mouse on the picture, the interception small image blocks at the bottom right, and save a small image b