cv2 notes

notes

CV2 Import 

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

'' ' modified video resolution ' '' 
# FPS = 10 
# size = ( 224 , 224 ) 
# 
# videoWriter = cv2.VideoWriter ( ' ex2.mp4 ' , cv2.VideoWriter_fourcc ( ' X- ' , ' V ' , ' the I ' , ' D ' ), FPS, size) 
# the 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()