import numpy as np
import cv2
canvas =np.zeros((300,300,3), dtype="uint8")
green=(0,255,0)
cv2.line(canvas,(0,0),(300,300),green,10)
cv2.imshow("Canvas",canvas)
cv2.waitKey(0)
red=(0,0,255)
cv2.line(canvas,(300,0),(0,300),red,10)
cv2.imshow("Canvas-2",canvas)
cv2.waitKey(0)
