import numpy as np import cv2 black_image = np.zeros((512,512,3), np.uint8 ) r = 200 for theta in range(0,360): radian = theta*np.pi/180 x=np.cos(radian)*r y=np.sin(radian)*r cv2.line( black_image, (250,250), (int(x+250),int(y+250)), (255,0,0), 1 ) cv2.imshow( "image", black_image ) cv2.waitKey(0) black_image = np.zeros((512,512,3), np.uint8 )512x512크기의 BGR 이미지를 생성. 0으로 채워지기때문에 블랙 이미지임 r = 200 f..