python实现视频读取和转化图片

import cv2

cap = cv2.VideoCapture('E:\\Video\\20000105_224116.dav') #地址

while(True):

  ret,frame = cap.read()

  if(ret):

    # gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)

    cv2.imshow('input',frame)

  else:

    break

  if cv2.waitKey(1)==27:

    break

cap.release()

cv2.destroyAllWindows()

# -*- coding: utf-8 -*-
"""
Created on Mon Nov 5 15:21:15 2018

@author: chenjin10
"""

import cv2
vc = cv2.VideoCapture('E:\\Video\\binggan.dav')
c=0
rval=vc.isOpened()

while rval:
  c = c + 1
  rval, frame = vc.read()
  if rval:
    cv2.imwrite('E:\\Video\\binggan\\'+'camera1_binggan'+str(c) + '.jpg', frame) #命名方式
    print(c)
  else:
    break
vc.release()