由于要进行多路视频的处理,所以fps就很重要 fps介绍 模板: 1.获取某一时刻的fps import time while True: start_time = time.time() # start time of the loop ######################## # your fancy code here # ######################## print("FPS: ", 1.0 / (time.time() - start_time)) #
OpenCV显示视频帧时出现一个问题,就是imshow之后若是不加waitkey则无法显示,找了很久也没找到原因. 只是发现也有人发现这个问题: cvWaitKey(x) / cv::waitKey(x) does two things: It waits for x milliseconds for a key press. If a key was pressed during that time, it returns the key's ASCII code. Otherwise,