image_seq_to_video.py -- A Python function to convert a sequence of images to video. Depends on OpenCV. See the original and an application here: https://github.com/talhaahussain/grappling-pose-identification/

image_seq_to_video.py

import cv2

def concat_frames_into_video(filename, frames, fps):
  height, width, channels = frames[0].shape

  fourcc = cv2.VideoWriter_fourcc(*'mp4v')
  out = cv2.VideoWriter(filename, fourcc, fps, (width, height))

  for frame in frames:
    out.write(frame)

  out.release()