CV CV2 AS Import
IMG = cv.imread ( '0.jpg')
cv.imshow ( 'IMG', IMG)
Print (img.shape)
cv.circle (IMG, (520,430), 300, (255,0,0 ), 8) in the original image img # in encircled, the center point of its ring (520,430), radius = 300, color (255,0,0), thickness 8 =
cv.imshow ( 'IMG1', img)
cv.imwrite ( 'f.png', img) # circle pictures stored
cv.waitKey ()
cv.destroyAllWindows ()
the effect of: