import cv2
import numpy as np
img = cv2.imread('./image/hua.png')
mean_img = cv2.pyrMeanShiftFiltering(img,20,30)
imgcanny = cv2.Canny(mean_img, 150,300)
contours,_ = cv2.findContours(imgcanny,cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)
cv2.drawContours(img,contours,-1,(0, 0,255),2)
cv2.imshow('img',img)
cv2.imshow('mean_img',mean_img)
cv2.imshow('canny',imgcanny)
cv2.waitKey(0)
cv2.destroyAllwindows()
