python-barcode-ocr.py

import argparse

try:
    from PIL import Image
except ImportError:
    import Image
import pytesseract

import sys
from dbr import DynamsoftBarcodeReader
dbr = DynamsoftBarcodeReader()

def main():
    # Get the input image file
    ap = argparse.ArgumentParser()
    ap.add_argument("-i", "--image", type=str,
        help="path to input image")
    args = vars(ap.parse_args())

    image = args["image"]
    if image == None:
        image = 'codabar.jpg'


    # barcode detection
    dbr.initLicense('LICENSE-KEY')
    try:
        results = dbr.DecodeFile(image)
        textResults = results["TextResults"]
        resultsLength = len(textResults)
        print("count: " + str(resultsLength))
        if resultsLength != 0:
            for textResult in textResults:
                print('Barcode Type: %s' % (textResult["BarcodeFormatString"]))
                print('Barcode Result: %s' % (textResult["BarcodeText"]))
                # localizationResult = textResult["LocalizationResult"]
                # x1 = localizationResult["X1"]
                # y1 = localizationResult["Y1"]
                # x2 = localizationResult["X2"]
                # y2 = localizationResult["Y2"]
                # x3 = localizationResult["X3"]
                # y3 = localizationResult["Y3"]
                # x4 = localizationResult["X4"]
                # y4 = localizationResult["Y4"]
                # localizationPoints = [(x1,y1),(x2,y2),(x3,y3),(x4,y4)]
                # print(localizationPoints)
        else :
            print("No barcode detected")
    except Exception as err:
        print(err)

    custom_oem_psm_config = r'digits'

    ## Inovke Tesseract OCR
    result = pytesseract.image_to_string(Image.open(image), config=custom_oem_psm_config)
    print('OCR Result:     %s' % (result))
    ## Filter string and keep digital numbers
    # digits = ''
    # for i in result:
    #     if ord(i) >= 48 and ord(i) <= 57:
    #         digits += i

    # print(digits)

if __name__ == "__main__":
    main()