import numpy as np
import cv2
img = np.zeros((512,512,3),np.uint8)

img = cv2.line(img,(0,0),(512,511),(255,0,0),1)
img = cv2.rectangle(img,(384,50),(30,90),(0,255,0),5)
img = cv2.circle(img,(447,63), 63, (0,0,255), -1)
img = cv2.ellipse(img,(256,256),(100,50),0,0,180,255,-1)
pts = np.array([[10,5],[20,30],[70,20],[50,10]], np.int32)
pts = pts.reshape((-1,1,2))
img = cv2.polylines(img,[pts],True,(0,255,255))

font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(img,'OpenCV',(10,500),font,4,(255,255,255),2,cv2.LINE_AA)
cv2.imshow('img',img)

cv2.waitKey(0) & 0xFF

cv2.destroyAllWindows()

import numpy as np
import cv2
img = np.zeros((512,512,3),np.uint8)

img = cv2.line(img,(0,0),(512,511),(255,0,0),1)
img = cv2.rectangle(img,(384,50),(30,90),(0,255,0),5)
img = cv2.circle(img,(447,63), 63, (0,0,255), -1)
img = cv2.ellipse(img,(256,256),(100,50),0,0,180,255,-1)
pts = np.array([[10,5],[20,30],[70,20],[50,10]], np.int32)
pts = pts.reshape((-1,1,2))
img = cv2.polylines(img,[pts],True,(0,255,255))

font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(img,'OpenCV',(10,500),font,4,(255,255,255),2,cv2.LINE_AA)
cv2.imshow('img',img)

cv2.waitKey(0) & 0xFF

cv2.destroyAllWindows()
