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Joachim
2020-03-23 11:48:41 +01:00
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modules/objdetect/misc/python/test/test_qrcode_detect.py Normal file
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#!/usr/bin/env python
'''
===============================================================================
QR code detect and decode pipeline.
===============================================================================
'''
import os
import numpy as np
import cv2 as cv
from tests_common import NewOpenCVTests
class qrcode_detector_test(NewOpenCVTests):
def test_detect(self):
img = cv.imread(os.path.join(self.extraTestDataPath, 'cv/qrcode/link_ocv.jpg'))
self.assertFalse(img is None)
detector = cv.QRCodeDetector()
retval, points = detector.detect(img)
self.assertTrue(retval)
self.assertEqual(points.shape, (1, 4, 2))
def test_detect_and_decode(self):
img = cv.imread(os.path.join(self.extraTestDataPath, 'cv/qrcode/link_ocv.jpg'))
self.assertFalse(img is None)
detector = cv.QRCodeDetector()
retval, points, straight_qrcode = detector.detectAndDecode(img)
self.assertEqual(retval, "https://opencv.org/")
self.assertEqual(points.shape, (1, 4, 2))
def test_detect_multi(self):
img = cv.imread(os.path.join(self.extraTestDataPath, 'cv/qrcode/multiple/6_qrcodes.png'))
self.assertFalse(img is None)
detector = cv.QRCodeDetector()
retval, points = detector.detectMulti(img)
self.assertTrue(retval)
self.assertEqual(points.shape, (6, 4, 2))
def test_detect_and_decode_multi(self):
img = cv.imread(os.path.join(self.extraTestDataPath, 'cv/qrcode/multiple/6_qrcodes.png'))
self.assertFalse(img is None)
detector = cv.QRCodeDetector()
retval, decoded_data, points, straight_qrcode = detector.detectAndDecodeMulti(img)
self.assertTrue(retval)
self.assertEqual(len(decoded_data), 6)
self.assertEqual(decoded_data[0], "TWO STEPS FORWARD")
self.assertEqual(decoded_data[1], "EXTRA")
self.assertEqual(decoded_data[2], "SKIP")
self.assertEqual(decoded_data[3], "STEP FORWARD")
self.assertEqual(decoded_data[4], "STEP BACK")
self.assertEqual(decoded_data[5], "QUESTION")
self.assertEqual(points.shape, (6, 4, 2))