import cv2
import numpy as np

img = np.zeros((512,512,3),np.uint8)
#print(img)

#img[:] = 255,0,0

#cv2.line(img,(0,0),(300,300),(0,255,0),3)

cv2.line(img,(0,0),(img.shape[1],img.shape[0]),(0,255,0),3)
cv2.rectangle(img,(0,0),(250,350),(0,0,255),2)
#cv2.rectangle(img,(0,0),(250,350),(0,0,255),cv2.FILLED)
cv2.circle(img,(400,50),30,(255,255,0),5)
cv2.putText(img,"OPEN CV",(300,200), cv2.FONT_HERSHEY_SIMPLEX, 1, (0,150,0),1 )



cv2.imshow("Image",img)

cv2.waitKey(0)