使用Python opencv实现视频与图片的相互转换

import cv2
vc=cv2.VideoCapture("/home/hqd/PycharmProjects/1/1/19.MOV")
c=1
if vc.isOpened():
  rval,frame=vc.read()
else:
  rval=False
while rval:
  rval,frame=vc.read()
  cv2.imwrite('/home/hqd/PycharmProjects/1/1/19/'+str(c)+'.jpg',frame)
  c=c+1
  cv2.waitKey(1)
vc.release()

import cv2import os
fps = 30
fourcc = cv2.VideoWriter_fourcc('M', 'J', 'P', 'G')
video_writer = cv2.VideoWriter(filename='./result.avi', fourcc=fourcc, fps=fps, frameSize=(1920, 1080))
for i in range(0,6000):
  p = i
  if os.path.exists('/home/hqd/PycharmProjects/1/qqqq/'+str(p)+'.jpg'):  #判断图片是否存在
    img = cv2.imread(filename='/home/hqd/PycharmProjects/1/qqqq/'+str(p)+'.jpg')
    cv2.waitKey(100)
    video_writer.write(img)
    print(str(p) + '.jpg' + ' done!')
video_writer.release()