drawing_functions_in_opencv.py

import numpy as np
import cv2

#img = cv2.imread('./img/lena.jpg', 1)
img = np.zeros([512, 512, 3], np.uint8) # 넘파이로 블랙 이미지 생성

img = cv2.line(img, (0,0), (255,255), (147,96,44), 10) # 44, 96, 147
img = cv2.arrowedLine(img, (0,255), (255,255), (255,0,0), 10)

img = cv2.rectangle(img, (384,0), (510,128), (0,0,255), 10)
img = cv2.circle(img, (447, 63), 63, (0,255,0), -1)

font = cv2.FONT_HERSHEY_SIMPLEX
img = cv2.putText(img, 'OpenCV', (10,500), font, 4, (0,255,255), 10, cv2.LINE_AA)

cv2.imshow('image', img)

cv2.waitKey(0)
cv2.destroyAllWindows()