Python cv2 霍夫轉換圓形偵測 - TShopping

import numpy as np
import cv2, os
img1 = cv2.imread('coins.png')
img2 = img1.copy()
gray = cv2.cvtColor(img1 , cv2.COLOR_RGB2GRAY)
circles = cv2.HoughCircles(gray, cv2.HOUGH_GRADIENT,1,50,20,10,minRadius=50,maxRadius=80)
#print(circles)
circles = np.uint16(np.around(circles))
#print(circles)
for i in circles[0,:]:
print('i:',i)
cv2.circle(img2, (i[0], i[1]), i[2], (0,255,0), 10) #畫圓
cv2.circle(img2, (i[0], i[1]), 2, (0, 0, 255), 3)#畫圓心
cv2.imshow('img1',img1)
# cv2.imshow('gray',gray)
# cv2.imshow('circles',circles)
cv2.imwrite('HoughCircles.png', img2)
cv2.imshow('img2',img2)
cv2.waitKey()

複製代碼