参考链接：python+opencv 将.mp4视频每一帧转为jpg图片_将mp4每一帧转化为图片-CSDN博客

from cv2 import VideoCapture
from cv2 import imwrite# 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'imwrite(address, image)if __name__ == '__main__':video_path = "../rence/0001.avi"  # 视频路径out_path = "./0001pic"  # 保存图片路径+名字is_all_frame = True  # 是否取所有的帧sta_frame = 1  # 开始帧end_frame = 40  # 结束帧######time_interval = 1  # 时间间隔# 读取视频文件videoCapture = VideoCapture(video_path)# 读帧success, frame = videoCapture.read()print(success)i = 0j = 0if is_all_frame:time_interval = 1while success:i = i + 1if (i % time_interval == 0):if is_all_frame == False:if i >= sta_frame and i <= end_frame:j = j + 1print('save frame:', i)save_image(frame, out_path, j)elif i > end_frame:breakelse:j = j + 1print('save frame:', i)save_image(frame, out_path, j)success, frame = videoCapture.read()