"cv2.error: OpenCV(4.5.5) :-1: error: (-5:Bad argument) in function 'line'"

Question

Traceback (most recent call last):
  File "C:\Users\Inspiron\PycharmProjects\car\main.py", line 13, in <module>
    cv2.line(img,(coord[0][0],coord[0][1],coord[1][0],coord[1][1]),(0,0,255),2)
cv2.error: OpenCV(4.5.5) :-1: error: (-5:Bad argument) in function 'line'
> Overload resolution failed:
>  - Can't parse 'pt1'. Expected sequence length 2, got 4
>  - Can't parse 'pt1'. Expected sequence length 2, got 4

Answer 1

The line function expects two coordinates (x0,y0) and (x1,y1). Try changing your call to this:

cv2.line(img,(coord[0][0],coord[0][1]),(coord[1][0],coord[1][1]),(0,0,255),2)

See the following link for an example.