barcode-qr-code-sdk 9.0.3

Barcode and QR code scanning SDK for Python

Python Extension: Barcode and QR Code SDK

The project uses CPython to bind Dynamsoft C/C++ Barcode Reader SDK. It aims to help developers build Python barcode and QR code scanning apps on Windows, Linux, macOS, Raspberry Pi and Jetson Nano. You are free to customize the Python API for Dynamsoft Barcode Reader.

Dynamsoft Barcode Reader Version

v9.0.0

License Key for SDK

Click here to get a 30-day FREE trial license.

Supported Barcode Symbologies

• Linear Barcodes (1D)

  • Code 39 (including Code 39 Extended)
  • Code 93
  • Code 128
  • Codabar
  • Interleaved 2 of 5
  • EAN-8
  • EAN-13
  • UPC-A
  • UPC-E
  • Industrial 2 of 5

• 2D Barcodes:

  • QR Code (including Micro QR Code)
  • Data Matrix
  • PDF417 (including Micro PDF417)
  • Aztec Code
  • MaxiCode (mode 2-5)

• Patch Code

• GS1 Composite Code

Supported Python Edition

• Python 3.x

Requirements

• Dynamsoft C/C++ Barcode Reader SDK.

How to Build the Python Barcode and QR Code Extension

• Create a source distribution:

  python setup.py sdist
  

• distutils:

  python setup_distutils.py build
  

• scikit-build:

  python setup.py develop
  pip wheel . --verbose
  

Quick Start

• Console App

  import barcodeQrSDK
  
  # set license
  barcodeQrSDK.initLicense("DLS2eyJoYW5kc2hha2VDb2RlIjoiMjAwMDAxLTE2NDk4Mjk3OTI2MzUiLCJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSIsInNlc3Npb25QYXNzd29yZCI6IndTcGR6Vm05WDJrcEQ5YUoifQ==")
  
  reader = barcodeQrSDK.DynamsoftBarcodeReader()
  
  results = reader.decodeFile("test.png")
  for result in results:
      print(result.format)
      print(result.text)
      print(result.x1)
      print(result.y1)
      print(result.x2)
      print(result.y2)
      print(result.x3)
      print(result.y3)
      print(result.x4)
      print(result.y4)
  

• Video App

  import cv2
  import barcodeQrSDK
  import time
  import numpy as np
  # set license
  barcodeQrSDK.initLicense("DLS2eyJoYW5kc2hha2VDb2RlIjoiMjAwMDAxLTE2NDk4Mjk3OTI2MzUiLCJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSIsInNlc3Npb25QYXNzd29yZCI6IndTcGR6Vm05WDJrcEQ5YUoifQ==")
  
  # initialize barcode reader
  reader = barcodeQrSDK.DynamsoftBarcodeReader()
  
  def get_time():
      localtime = time.localtime()
      capturetime = time.strftime("%Y%m%d%H%M%S", localtime)
      return capturetime
  
  
  def read_barcode():
  
      vc = cv2.VideoCapture(0)
  
      if vc.isOpened():  # try to get the first frame
          rval, frame = vc.read()
      else:
          return
  
      windowName = "Barcode Reader"
  
      while True:
          cv2.imshow(windowName, frame)
          rval, frame = vc.read()
          results = reader.decodeMat(frame)
          if (len(results) > 0):
              print(get_time())
              print("Total count: " + str(len(results)))
              for result in results:
                  print("Type: " + result.format)
                  print("Value: " + result.text + "\n")
                  x1 = result.x1
                  y1 = result.y1
                  x2 = result.x2
                  y2 = result.y2
                  x3 = result.x3
                  y3 = result.y3
                  x4 = result.x4
                  y4 = result.y4
  
                  cv2.drawContours(frame, [np.array([(x1, y1), (x2, y2), (x3, y3), (x4, y4)])], 0, (0, 255, 0), 2)
  
          # 'ESC' for quit
          key = cv2.waitKey(20)
          if key == 27:
              break
  
      cv2.destroyWindow(windowName)
  
  
  if __name__ == "__main__":
      print("OpenCV version: " + cv2.__version__)
      read_barcode()
  

  

Online Documentation

To customize Python API based on C/C++, please refer to the online documentation.