In this article, the example for you to share the python realization of the video sub-frame specific code, for your reference, the specific content is as follows
import cv2
vidcap = ('')
success,image = ()
count = 0
success = True
while success:
success,image = ()
("frame%" % count, image) # save frame as JPEG file
if (10) == 27:
break
count += 1
python tools：Extract and save every frame of the video
# coding=utf-8
import os
import cv2
videos_src_path = "/home/wgp/video/"
video_formats = [".MP4", ".MOV"]
frames_save_path = "/home/wgp/video/"
width = 320
height = 240
time_interval = 50
def video2frame(video_src_path, formats, frame_save_path, frame_width, frame_height, interval):
"""
Reads and writes the video to the image at fixed intervals
:param video_src_path: the path where the video is stored
:param formats: all included video formats
:param frame_save_path: save path
:param frame_width: save frame width
:param frame_height: Save the frame height
:param interval: save the frame interval
:return: frame image
"""
videos = (video_src_path)
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 "Video being read:", each_video
each_video_name = each_video[:-4]
(frame_save_path + each_video_name)
each_video_save_full_path = (frame_save_path, each_video_name) + "/"
each_video_full_path = (video_src_path, each_video)
cap = (each_video_full_path)
frame_index = 0
frame_count = 0
if ():
success = True
else:
success = False
print("Read failed!")
while(success):
success, frame = ()
print "---> Reading frame %d:" % frame_index, success
if frame_index % interval == 0:
resize_frame = (frame, (frame_width, frame_height), interpolation=cv2.INTER_AREA)
# (each_video_save_full_path + each_video_name + "_%" % frame_index, resize_frame)
(each_video_save_full_path + "%" % frame_count, resize_frame)
frame_count += 1
frame_index += 1
()
if __name__ == '__main__':
video2frame(videos_src_path, video_formats, frames_save_path, width, height, time_interval)
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