def test_failed_read(self): import numpy as np res = zxing.read_barcode(np.zeros((100, 100), np.uint8), formats = BF.EAN_8 | BF.AZTEC, binarizer = zxing.BoolCast) self.assertFalse(res.valid) self.assertEqual(res.format, BF.NONE) self.assertEqual(res.text, '')
def test_failed_read(self):
import numpy as np
res = zxing.read_barcode(np.zeros((100, 100), np.uint8),
formats=[BF.EAN_8, BF.AZTEC])
self.assertFalse(res.valid)
self.assertEqual(res.format, BF.INVALID)
self.assertEqual(res.text, '')
def test_write_read_cycle_pil(self):
from PIL import Image
format = BF.QRCode
text = "I have the best words."
img = zxing.write_barcode(format, text)
img = Image.fromarray(img, "L")
res = zxing.read_barcode(img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.top_left.x, 4)
rgb_img = img.convert("RGB")
res = zxing.read_barcode(rgb_img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.top_left.x, 4)
rgba_img = img.convert("RGBA")
res = zxing.read_barcode(rgba_img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.top_left.x, 4)
bin_img = img.convert("1")
res = zxing.read_barcode(bin_img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.top_left.x, 4)
cmyk_img = img.convert("CMYK")
res = zxing.read_barcode(cmyk_img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.top_left.x, 4)
def test_write_read_cycle(self):
format = BF.QR_CODE
text = "I have the best words."
img = zxing.write_barcode(format, text)
res = zxing.read_barcode(img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
def test_write_read_cycle(self): format = BF.QRCode text = "I have the best words." img = zxing.write_barcode(format, text) res = zxing.read_barcode(img) self.assertTrue(res.valid) self.assertEqual(res.format, format) self.assertEqual(res.text, text) self.assertEqual(res.orientation, 0) self.assertEqual(res.position.top_left.x, 4) res = zxing.read_barcode(img, formats=format) self.assertTrue(res.valid) self.assertEqual(res.format, format) self.assertEqual(res.text, text) self.assertEqual(res.orientation, 0) self.assertEqual(res.position.top_left.x, 4)
def test_write_read_oned_cycle(self):
format = BF.Code128
text = "I have the best words."
height = 80
width = 400
img = zxing.write_barcode(format, text, width=width, height=height)
self.assertEqual(img.shape[0], height)
self.assertEqual(img.shape[1], width)
res = zxing.read_barcode(img)
self.assertTrue(res.valid)
self.assertEqual(res.format, format)
self.assertEqual(res.text, text)
self.assertEqual(res.orientation, 0)
self.assertEqual(res.position.topLeft.x, 61)
import sys, zxing
from PIL import Image
img = Image.open(sys.argv[1])
result = zxing.read_barcode(img)
if result.valid:
print(
"Found barcode:\n Text: '{}'\n Format: {}\n Position: {}".format(
result.text, result.format, result.position))
else:
print("Could not read barcode")
