import numpy as np import math import cv2 import cv2 as cv cap =
cv2.VideoCapture(0) cap.set(3,320) cap.set(4,240) low_range = np.array([0,0,0])
high_range = np.array([255,30,255]) class Sobelxy(): def sobelxy(self,img):
self_img = img sobelx = cv2.Sobel(self_img,cv2.CV_64F,1,0) sobelx =
cv2.convertScaleAbs(sobelx) sobely = cv2.Sobel(self_img,cv2.CV_64F,0,1) sobely
= cv2.convertScaleAbs(sobely) sobelxy =
cv2.addWeighted(sobelx,0.5,sobely,0.5,0) return sobelxy class Rxy(): def
rxy(self,erzhi,x,y,r): self_erzhi = erzhi self_x = x self_y = y self_r = r a =
b = c = c1 =1 # print("xyr",self_x,self_y,self_r) for l in
range(self_x-self_r,self_x+self_r,3): if l < 0: l = 0 if l > 236: l = 236 for h
in range(self_y-self_r,self_y+self_r,3): if h < 0: h = 0 if h > 316: h = 316 s
= int(math.sqrt((l-self_x)**2+(h-self_y)**2)) # print("lhs",l,h,s) if s <=
self_r: print(l,h) a = a+self_erzhi[l,h] c = c+1 for zx in
range(self_x-self_r-20,self_y+self_r+20,5): for zy in
range(self_y-self_r-20,self_y+self_r+20,5): b = b+self_erzhi[zx,zy] c1 = c1+1
print(a/c,b/c1) if int(a/c) >= (int(b/c1)+50): print("yuan")
cv.circle(frame1,(self_x,self_y),self_r,(255,0,0),2)
cv.circle(frame1,(self_x,self_y),2,(255,0,0),2) while (cap.isOpened()): erzhi =
Rxy() ret,frame1 = cap.read() erzhi3 = cv2.cvtColor(frame1,cv2.COLOR_BGR2GRAY)
print(np.shape(frame1)) cv2.imshow('2',erzhi3) frame = np.copy(frame1) frame1 =
cv2.GaussianBlur(frame1,(5,5),0) bian = cv2.Canny(frame1,20,80) r1,erzhi2 =
cv2.threshold(bian,128,255,cv2.THRESH_BINARY_INV) huofu =
if huofu != None: huofu = np.uint16(np.around(huofu)) for i in huofu[0,:]: x =
int(i[0]) y = int(i[1]) r = int(i[2]) if erzhi2[y,x] and r<20 and r>5:
erzhi.rxy(erzhi3,x,y,r) print("x=,y=",x,y) print("r=",r)
print("erzhi2=",erzhi2[y,x]) # cv.circle(frame1,(i[0],i[1]),i[2],(255,0,0),2) #
cv.circle(frame1,(i[0],i[1]),2,(255,0,0),2) cv2.imshow('frame',frame)
cv2.imshow('bian',bian) cv2.imshow('frame1',frame1) cv2.imshow('erzhi1',erzhi2)
if cv2.waitKey(1) & 0XFF == ord('q'): break; cap.release()
cv2.destroyAllWindows()
Some algorithms were written by themselves , For production examination only .

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