OpenCV2之简单处理视频

本文主要是介绍OpenCV2之简单处理视频，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

OpenCV2
https://www.geeksforgeeks.org/opencv-python-tutorial/

• 视频采集

    import cv2currentframe = 0cap = cv2.VideoCapture(0)while cap.isOpened():ret, frame = cap.read()cv2.imshow('frame', frame)# 隔多少帧保存一张图片if currentframe % 10 == 0:cv2.imwrite(f'{TEMP_PATH}/cap/{int(time.time() * 1000)}.png', frame)currentframe += 1# 退出if cv2.waitKey(1) & 0xFF == ord('q'):breakcap.release()cv2.destroyAllWindows()

• 视频处理（处理帧+加文字）

    import cv2currentframe = 0cap = cv2.VideoCapture(0)while cap.isOpened():ret, frame = cap.read()frame = cv2.rectangle(frame, (frame.size, frame.size), (frame.size - 80, frame.size - 30), (246, 64, 65), 1)cv2.putText(frame,'this is a demo test',(50, 50),cv2.FONT_HERSHEY_PLAIN, 1,(0, 255, 255),2,cv2.LINE_4)cv2.imshow('frame', frame)# 隔多少帧保存一张图片if currentframe % 101 == 0:cv2.imwrite(f'{TEMP_PATH}/cap/{int(time.time() * 1000)}.png', frame)currentframe += 1# 退出if cv2.waitKey(1) & 0xFF == ord('q'):breakcap.release()cv2.destroyAllWindows()

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