OpenCV Template Matching

template_matching.py

import cv2
import numpy as np
from matplotlib import pyplot as plt

# Load images
img = cv2.imread('image.jpg', 0)
template = cv2.imread('template.jpg', 0)
w, h = template.shape[::-1]

# Apply template matching
# availible methods are 
# cv2.TM_CCOEFF, cv2.TM_CCOEFF_NORMED, cv2.TM_CCORR
# cv2.TM_CCORR_NORMED, cv2.TM_SQDIFF, cv2.TM_SQDIFF_NORMED

res = cv2.mathTemplate( template, img, cv2.TM_CCOEFF )
min_val, max_val, min_loc, max_loc = cv2.minMaxLoc( res )

top_left = max_loc
bottom_right = ( top_left[0] + w, top_left[1] + h  )

# draw box on template
cv2.rectangle( template, top_left, bottom_right, 255, 2 )
plt.imshow( template, cmap='gray' )
ply.show()

this code has several syntax errors.

Line 15 should be:
res = cv2.matchTemplate( template, img, cv2.TM_CCOEFF )

Line 24 should be:
plt.show()