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#Python qr code reader youtube code#

#Python qr code reader youtube code#

Continue by appending the following code to generate a QR code with a white background and black fill. The next step is to call the add_data() function.

ERROR_CORRECT_H - About 30% or fewer errors can be corrected.

ERROR_CORRECT_Q - About 25% or fewer errors can be corrected.

ERROR_CORRECT_M - About 15% or fewer errors can be corrected.

ERROR_CORRECT_L - About 7% or fewer errors can be corrected.

There are four constants available for error_correction: It will be further explained in the next paragraph.Įrror correction helps to improve the detection even when the image is disfigured or there is an overlay image on top of the QR Code.

error_correction - Controls the error correction used.

The default value is 4, which is the minimum size. border - Determines the thickness of the border of the boxes.box_size - Determines the number of pixels for each box of the QR code.The smallest version 1 has a dimension of 21 x 21. version - Accepts an integer from 1 to 40 which controls the size of the QR Code.qr = qrcode.QRCode( version=1, error_correction=_CORRECT_H, box_size=10, border=4, ) You can utilize the QRCode class, which comes with a lot more controls and properties. import qrcode from PIL import Image Basic exampleįor basic usage, you can simply run the make() function to generate a QR Code based on your input text: img = qrcode.make('Your input text') Advanced usage Let’s proceed to the next section and start installing the necessary modulesĪdd the following import declaration at the top of your Python file. There are four sections in this tutorial. As a result, a QR code contains a lot more information compared to a barcode. Bar codes only hold information in the horizontal direction a QR code holds information in both horizontal and vertical directions. There is a big difference between QR codes and bar codes. The information encoded can be made up of any kind of data (e.g., binary, alphanumeric, or Kanji symbols)”. The code consists of black modules arranged in a square pattern on a white background. “…a two-dimensional pictographic code used for its fast readability and comparatively large storage capacity. Based on the official Github page, it outlines a QR code as: I am using python-qrcode module for this tutorial. At the end of this tutorial, you should be able to integrate QR codes functionality into your own Python application.

By reading this piece, you will learn to generate your own QR code and decode QR codes from an image.