Picture synthesis video

# -*- coding: UTF-8 -*-
import glob
import os
import cv2
import time


#  Picture synthesis video 
def picvideo(path, size):
    filelist = os.listdir(path)  #  Get all file names in this directory 
    filelist.sort(key=lambda x: int(x[:-4]))  ## File names are sorted by number 
    ''' fps:  Frame rate ：1 Seconds n Write in a picture [ Control a picture to stay 5 Second , That's the frame rate 1, Repeat this picture 5 Time ]  If there is 50 Zhang  534*300 Pictures of the , Set up here 1 Seconds to play 5 Zhang , So the duration of this video is 10 second  '''
    fps = 30
    # file_path = str(int(time.time())) + ".mp4" #  export path 
    file_path = "2.mp4"
    fourcc = cv2.VideoWriter_fourcc('M', 'P', '4', 'V')  #  Different video codes correspond to different video formats （ example ：'I','4','2','0'  Corresponding avi Format ）

    video = cv2.VideoWriter(file_path, fourcc, fps, size)

    for item in filelist:
        item = os.path.join(os.getcwd(),path,item)
        img = cv2.imread(item)  #  Use opencv Read images , Go straight back to numpy.ndarray  object , The channel order is BGR , Note that BGR, Default range of channel values 0-255.
        # cv2.imshow("img",img)
        # cv2.waitKey(0)
        video.write(img)  #  Write the picture into the video 

    video.release()  #  Release 

picvideo('imgs_wu', (720, 1280))