opencv 提供了使用基于颜色的跟踪算法camshift, 很好的算法，可是它是个半自动的算法，它需要用户在跟踪界面设定跟踪的目标。-opencv provides color-based tracking algorithm camshift, good algorithm, but it is a semiautomatic algorithm, it needs to track the user interface to set tracking goals.