Pulls barcodes from images with OpenCV and reads them with pyzbar

barcode-reader.py

import os
import cv2
from pyzbar.pyzbar import decode

# Set your directory of images here, make sure no non-image files exist
directory = "./images/"

for file in os.listdir(directory):
    # Load image into CV2
    image = cv2.imread(directory+file)
    # Start CSV output
    # Print endline, filename, then comma (making the endline char a comma instead of endline)
    print('\n'+file, end=",")
    # Use pyzbar to get an array of data from each detected barcode in each image ndarray
    detected = decode(image)
    # Empty arr is false, rename unreadable images to mark them for manual review
    if not detected:
        os.rename(directory+file, directory+'unreadable_'+file)
    # Print a CSV column containing each barcode's data
    for barcode in detected:
        print(bytes.decode(barcode.data), end=",")