Guide to Generating &#038; Testing QRcode Using OpenCV
Nowadays QR Code scanners have become popular because of their huge usage. QRcode stores some information in it. We can detect the QRcode from the image and we can decode the data in it. Mostly we can see QR codes are used by all e-payment apps and by their customers and every manufacturing product will have the product description in the form of a QRcode By just scanning the QRcode we will get info of that product. In this article, we will try to generate a QRcode and test a QRcode scanner with a few lines of code using the OpenCV modules pyzbar and qrcode. Topics we cover in this article:- QR Code Generation in PythonIntroducing pyzbar moduleHow to Generate your own QR codeScanning QR code using images Hands-On Implementation Now, we will implement our program on QR Code creation. Importing required libraries import cv2 import numpy as np from google.colab.patches import cv2_imshow Introducing pyzbar library Pyzbar is an OpenCV module that is used to decode the QRcode and it is distributed under MIT license. Using this library it illustrates type: whether it is barcode or QRcode, data: the alphanumeric information is hidden in QRcode, and location: edges of the QRcode in the image. Installing pyzbar library pip install pyzbar installing pyzbar In the below code snippet we are installing the dependencies of the pyzbar library. !apt install libzbar installing lizar Creating a QR code scanner import qrcode img = qrcode.make('https://analyticsindiamag.com/') print(type(img)) print(img.size) img.save('/content/qrcode_test.png') image = cv2.imread("/content/qrcode_test.png") cv2_imshow(image) Generated QR code Here we generated a QRcode code and I stored the Analytics India magazine link in this QRcode so that when scanning this QRcode the link appears. Scanning QR code using images image = cv2.imread("/content/download (13).jpg") scan = pyzbar.decode(image) for obj in scan: print("Type:", obj.type) print("Data:", obj.data, "\n") Data = obj.data cv2_imshow(image) cv2.waitKey(0) Scanning QR code Here you can see we are getting the output type as QRcode and Data is the link we have given in the above snippet and we can try with any QRcode and it scans the information from the QRcode. Conclusion In this article, we demonstrated how to generate our own QRcode and how to scan QRcode and display information from it. Using OpenCV modules and a few lines of code in python we implemented the above code snippets.
Nowadays QR Code scanners have become popular because of their huge usage. QRcode stores some information in it. We can detect the QRcode from the image and we can decode the data in it. Mostly we can see QR codes are used by all e-payment apps and by their customers and every manufacturing product will […]
In this article, we will try to generate a QRcode and test a QRcode scanner with a few lines of code using the OpenCV modules pyzbar library.
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["Go", "NumPy", "TPU", "AI", "OpenCV", "Colab", "Python", "analytics", "programming_languages:Python", "R"]
["AI", "analytics", "Colab", "OpenCV", "NumPy", "TPU", "Python", "R", "Go", "programming_languages:Python"]
AI enthusiast, Currently working with Analytics India Magazine. I have experience of working with  Machine learning, Deep learning real-time problems, Neural networks, structuring and machine learning projects. I am a Computer Vision researcher and I am Interested in solving real-time computer vision problems.