import cv2
img=cv2.imread("1.jpeg")
tag=cv2.imread("11.jpg")
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
tg = cv2.cvtColor(tag, cv2.COLOR_BGR2GRAY)
h=img.shape[0]
w=img.shape[1]
height=tg.shape[0]
width=tg.shape[1]

def matcher(a,b):
    for x in range(0,height):
......................