python Mp4转图片

# 导入所需要的库
import cv2
import numpy as np

video_path = r"H:\ForestrySafetyPatrolAndWarningSystem\test\1.mp4" 
save_path = r"H:\ForestrySafetyPatrolAndWarningSystem\test\data"

# 定义保存图片函数
# image:要保存的图片名字
# addr；图片地址与相片名字的前部分
# num: 相片，名字的后缀。int 类型
def save_image(image, addr, num):
        address = addr + str(num) + '.jpg'
        cv2.imwrite(address, image)
 
 
# 读取视频文件 视频文件路径
videoCapture = cv2.VideoCapture(video_path)
# 通过摄像头的方式
# videoCapture=cv2.VideoCapture(1)
 
# 读帧
success, frame = videoCapture.read()
i = 0
timeF = 57
j = 0
while success:
    i = i + 1
    if (i % timeF == 0):
        j = j + 1
        save_image(frame, save_path, j) #视频截成图片存放的位置
        print('save image:', i)
    success, frame = videoCapture.read()