python opencv 3

original video: https://www.youtube.com/watch?v=W9BE4uOUA60

4 quadrants

reversed 4 quadrants

#main.py

import numpy as np

import cv2

cap = cv2.VideoCapture("assets/Santa Barbara.mp4")

while True:

    ret, frame = cap.read()

    width = int(cap.get(3))

    height = int(cap.get(4))

    image = np.zeros(frame.shape, np.uint8)

    smaller_frame = cv2.resize(frame, (0,0), fx=0.5, fy=0.5)

    image[:height//2, :width//2] = cv2.rotate(smaller_frame, cv2.ROTATE_180)

    image[height // 2:, :width // 2] = smaller_frame

    image[:height // 2, width // 2:] = cv2.rotate(smaller_frame, cv2.ROTATE_180)

    image[height // 2:, width // 2:] = smaller_frame

    cv2.imshow('frame', image)

    if cv2.waitKey(1) == ord('q'):

        break

cap.release()

cv2.destroyAllWindows()

reference:

https://www.youtube.com/watch?v=rKcwcARdg9M