Is there an easy way to convert an image to QR code using python?

Question

I wrote a code that creating a QR code image that contain a string. I wonder if is there any simple way to convert an image to QR code.

this is the implementation so far:


 from PIL import
 import qrcode

 def creatig_qr_code():

    qr = qrcode.make(
         "info_to_print"
    )

    qr.save('Element.png')

You may be able to convert the image to a base64 encoded string and then convert that string to QR code — SomethingSomething
– SomethingSomething, Commented Jun 22, 2022 at 9:06
What do you mean by "convert" an image? Read an existing image elsewhere, interpret it (read text I assume?) and then represent it as another image - but this time its a QR code containing the interpreted text? Or, as the others are assuming - you want it represented as an encoded string? — Amiga500
– Amiga500, Commented Jun 22, 2022 at 9:27

Alessandro Togni · Accepted Answer · 2022-06-22 09:58:16Z

2

Try something like this:

import base64
import qrcode


with open("yourimage_path", "rb") as image_file:
    encoded_string = base64.b64encode(image_file.read())
qr = qrcode.QRCode()
qr.add_data(encoded_string)
qr.make()

and then save, or do whatever you want with the qr.

EDIT

The qrcode dimensions has to match the dimensions of the image you are trying to encode. Choosing a too tiny dimension will result in DataOverflowError.

Change the qr code instantiation qr = qrcode.QRCode() with:

qr = qrcode.QRCode(version={"correct version"}, error_correction=qrcode.constants.{"correct error correction type"})

choosing the values that fits you necessity from a table like this

edited Jun 22, 2022 at 9:58

answered Jun 22, 2022 at 9:26

Alessandro Togni

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3 Comments

I'm not a robot Over a year ago

I think maybe some libraries are missing, I have errors in many lines which are not exist

Alessandro Togni Over a year ago

What do you mean? Paste the error you are getting

I'm not a robot Over a year ago

Traceback (most recent call last): File "C:\Users\e174701\OneDrive - Applied Materials\Desktop\QRCODE\draft.py", line 12, in <module> qr.make() File "C:\Users\e174701\AppData\Local\Programs\Python\Python39\lib\site-packages\qrcode\main.py", line 103, in make self.best_fit(start=self.version) File "C:\Users\e174701\AppData\Local\Programs\Python\Python39\lib\site-packages\qrcode\main.py", line 180, in best_fit raise exceptions.DataOverflowError() qrcode.exceptions.DataOverflowError

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