PYTHON

cv2.rectangle

import cv2

cv2.rectangle(img, (x1, y1), (x2, y2), (255,0,0), 2)


x1,y1 ------
|          |
|          |
|          |
--------x2,y2

how to draw a rectangle in cv2

cv2.rectangle(image, start_point, end_point, color, thickness)
cv2.rectangle(Face, (x, y), (x+w, y+h), (255, 255, 255), thickness)


x,y-----------x+w
|
|
|
y+h

and the rest cv2.rectangle() will draw for you.

#P.S the x and y are coordinates and the w and h are width and height