cv2笔记

笔记

import cv2

cap = cv2.VideoCapture('ex2.mp4')

'''修改视频的分辨率'''
# fps=10
# size = (224, 224)
#
# videoWriter = cv2.VideoWriter('ex2.mp4', cv2.VideoWriter_fourcc('X', 'V', 'I', 'D'), fps, size)
# while True:
#     success, frame = cap.read()
#     if success:
#         frame = cv2.resize(frame, size)
#         videoWriter.write(frame)
#     else:
#         print('end')
#         break

'''播放视频'''
while(1):

    ret, frame = cap.read()
    # print(ret)
    if ret==True:

        cv2.imshow('frame',frame)

        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    else:
        break

# Release everything if job is finished
cap.release()
cv2.destroyAllWindows()