图像稳定。编译lkdemo代码（运动跟踪或光流法代码）。在一个更大的窗口中创建并显示视频图像。轻轻移动摄像机，并用光流法的向量将图像显示在大窗口中，并保持画面的稳定。这是一个基本的图像稳定技术-Image stabilization. Compiled lkdemo code (motion tracking or optical flow method code). Create and display video images in a larger window. Gently move the camera and light flow vector image is displayed in the large window, and keep the stability of the screen. This is a basic image stabilization technology