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单目标匹配

import cv2import matplotlib.pyplot as pltimport numpy as npimg =cv2.imread('number1.jpg')template = cv2.imread('22.png')w,h = template.shape[:2]res = cv2.matchTemplate(img,template,cv2.TM_CCOEFF_NORMED)min_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res)pt = max_loccv2.rectangle(img,pt,(pt[0]+h,pt[1]+w),(0,0,255),2)cv2.imshow('image',img)cv2.waitKey(0)cv2.destroyAllWindows()

多目标匹配使用阀值，这个是要自己优化把握

import cv2import matplotlib.pyplot as pltimport numpy as npimg =cv2.imread('number1.jpg')template = cv2.imread('1.png')w,h = template.shape[:2]res = cv2.matchTemplate(img,template,cv2.TM_CCOEFF_NORMED)threshold = 0.85loc = np.where(res>=threshold)for pt in zip(*loc[::-1]):    cv2.rectangle(img,pt,(pt[0]+h,pt[1]+w),(0,0,255),2)cv2.imshow('image',img)cv2.waitKey(0)cv2.destroyAllWindows()

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