DCT公式实现、DCT矩阵实现、AAN快速算法实现，及时间比较。-The DCT formula realize DCT matrix to achieve, AAN fast algorithm to achieve, and spend more time.

实现视频图像的目标快速跟踪。使用了camshift和kalman滤波算法。实时性不错，代码简单。-Video images of fast target tracking. Use the camshift and kalman filtering algorithm. Timeliness good, simple code.