Python OpenCV对本地视频文件进行分帧保存的实例

Python OpenCV对本地视频文件进行分帧保存的实例对本地视频文件进行分帧保存的实例

今天小编就为大家分享一篇Python OpenCV对本地视频文件进行分帧保存的实例，具有很好的参考价值，希望

对大家有所帮助。一起跟随小编过来看看吧

如下所示：如下所示：

# coding=utf-8

import os

import cv2

time_interval = 50

def video2frame(video_src_path, formats, frame_save_path, frame_width, frame_height, interval):

"""

将视频按固定间隔读取写入图片

:param video_src_path: 视频存放路径

:param formats:　包含的所有视频格式

:param frame_save_path:　保存路径

:param frame_width:　保存帧宽

def filter_format(x, all_formats):

if x[-4:] in all_formats:

return True

else:

return False

videos = filter(lambda x: filter_format(x, formats), videos)

for each_video in videos:

print "正在读取视频：", each_video

cap = cv2.VideoCapture(each_video_full_path)

frame_index = 0

frame_count = 0

if cap.isOpened():

success = True

else:

success = False

print("读取失败!")

# cv2.imwrite(each_video_save_full_path + each_video_name + "_%d.jpg" % frame_index, resize_frame)

cv2.imwrite(each_video_save_full_path + "%d.jpg" % frame_count, resize_frame)

frame_count += 1

frame_index += 1

cap.release()

if __name__ == '__main__':