原圖
完整代碼
- 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
結果圖
文章出處:網頁設計,網站架設 ,網路行銷,網頁優化,SEO - NetYea 網頁設計
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