template matching: more than one template?

[scidam]

You are likely needed to write a generator that return templates, e.g.

import glob, os

def get_templates(path='./templates', template_mask='png'):
    for f in glob.glob(os.path.join(path, '**', '*.' + template_mask)):
        yield cv2.imread(f, 0)

# now you can iterate over all templates 

for template in get_templates():
    result = cv2.matchTemplate(img_gray, template, cv2.TM_CCOEFF_NORMED)
    # do some stuff...