# encoding=utf8

import cv2
import numpy as np

def show(name):
 cv2.imshow('Show', name)
 cv2.waitKey(0)
 cv2.destroyAllWindows()

def main():
 otemp = 'template.png'
 oblk = 'target.jpg'
 target = cv2.imread(otemp, 0)
 template = cv2.imread(oblk, 0)
 w, h = target.shape[::-1]
 temp = 'temp.jpg'
 targ = 'targ.jpg'
 cv2.imwrite(temp, template)
 cv2.imwrite(targ, target)
 target = cv2.imread(targ)
 target = cv2.cvtColor(target, cv2.COLOR_BGR2GRAY)
 target = abs(255 - target)
 cv2.imwrite(targ, target)
 target = cv2.imread(targ)
 template = cv2.imread(temp)
 result = cv2.matchTemplate(target, template, cv2.TM_CCOEFF_NORMED)
 x, y = np.unravel_index(result.argmax(), result.shape)
 # 展示圈出来的区域
 cv2.rectangle(template, (y, x), (y + w, x + h), (7, 249, 151), 2)
 show(template)
if __name__ == '__main__':