众所周知，fft将图像转换频域，但是你知道fft可以实现简单而又快速有效的跟踪吗？看了篇文章我就懂了，这里是我调好的demo程序，供大家参考！-As we all know, fft to convert images in the frequency domain, but you know fft simple and can be implemented quickly and efficiently track it? Haha, I do not start the line, but