基于qt的多线程程序，使用opencv写的，是opencv和qt结合起来的例子，分享给需要做opencv和qt结合起来的工程的人作为参考-a simple multithread framework program based on opencv and qt, it can sever as example for integrating opencv and qt project

Qt、Opencv环境下，演示ptr、at（）函数遍历图像示例，在该示例中显示了简单圆和线的绘制。仅仅用于教学演示，没有采用Bresenham等快速算法。-Under Qt, Opencv environment, demonstrate ptr, at () function to traverse a sample image showing the draw simple circles and lines in this example. Only for teaching demons