pythoncode-tutorials/general/barcode-reader/barcode_reader.py at master · erreci/pythoncode-tutorials · GitHub

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from pyzbar import pyzbar

import cv2

def decode(image):

# decodes all barcodes from an image

decoded_objects = pyzbar.decode(image)

for obj in decoded_objects:

# draw the barcode

print("detected barcode:", obj)

image = draw_barcode(obj, image)

# print barcode type & data

print("Type:", obj.type)

print("Data:", obj.data)

print()

return image

def draw_barcode(decoded, image):

# n_points = len(decoded.polygon)

# for i in range(n_points):

# image = cv2.line(image, decoded.polygon[i], decoded.polygon[(i+1) % n_points], color=(0, 255, 0), thickness=5)

# uncomment above and comment below if you want to draw a polygon and not a rectangle

image = cv2.rectangle(image, (decoded.rect.left, decoded.rect.top),

(decoded.rect.left + decoded.rect.width, decoded.rect.top + decoded.rect.height),

color=(0, 255, 0),

thickness=5)

return image

if __name__ == "__main__":

from glob import glob

barcodes = glob("barcode*.png")

for barcode_file in barcodes:

# load the image to opencv

img = cv2.imread(barcode_file)

# decode detected barcodes & get the image

# that is drawn

img = decode(img)

# show the image

cv2.imshow("img", img)

# cv2.imwrite("barcode_detected.png", img)

cv2.waitKey(0)

pythoncode-tutorials/general/barcode-reader/barcode_reader.py at master · erreci/pythoncode-tutorials · GitHub

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