Text extraction from passport MRZ

I need to extract MRZ from passport in our project.Could not able to crop MRZ dynamically from given passport

from easyocr import Reader
import argparse
import cv2


def cleanup_text(text):

    return ''.join([(c if ord(c) < 128 else '') for c in text]).strip()


ap = argparse.ArgumentParser()
ap.add_argument('-i', '--image', required=True,
                help="path to input image to be OCR'd")
ap.add_argument('-l', '--langs', type=str, default='en',
                help='comma separated list of languages to OCR')
ap.add_argument('-g', '--gpu', type=int, default=-1,
                help='whether or not GPU should be used')
args = vars(ap.parse_args())


langs = args['langs'].split(',')
print ("[INFO] OCR'ing with the following languages: {}".format(langs))


image = cv2.imread(args['image'])

print ("[INFO] OCR'ing input image...")
reader = Reader(langs, gpu=args['gpu'] > 0)
results = reader.readtext(image)

for (bbox, text, prob) in results:

    print ('[INFO] {:.4f}: {}'.format(prob, text))

    (tl, tr, br, bl) = bbox
    tl = (int(tl[0]), int(tl[1]))
    tr = (int(tr[0]), int(tr[1]))
    br = (int(br[0]), int(br[1]))
    bl = (int(bl[0]), int(bl[1]))

    text = cleanup_text(text)
    cv2.rectangle(image, tl, br, (0, 255, 0), 2)
    cv2.putText(
        image,
        text,
        (tl[0], tl[1] - 10),
        cv2.FONT_HERSHEY_SIMPLEX,
        0.8,
        (0, 255, 0),
        2,
        )

cv2.imshow('Image', image)
cv2.waitKey(0)