opencv 6 corner detection

#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))

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    #track corner (frame, # of corners, min quality, min distance)

    corners = cv2.goodFeaturesToTrack(gray, 100, 0.01, 10)

    corners = np.int0(corners)

    for corner in corners:

        x, y = corner.ravel()

        cv2.circle(frame, (x, y), 5, (0, 0, 255), -1)

    """

    #draw lines between corners

    for i in range(len(corners)):

        for j in range(i + 1, len(corners)):

            corner1 = tuple(corners[i][0])

            corner2 = tuple(corners[j][0])

            color = tuple(map(lambda x: int(x), np.random.randint(0, 255, size=3)))

            cv2.line(frame, corner1, corner2, color, 1)

    """

    cv2.imshow('frame', frame)

    if cv2.waitKey(1) == ord('q'):

        break

cap.release()

cv2.destroyAllWindows()

reference:

https://www.youtube.com/watch?v=I7lCpTOfxF4