Friday 22 March 2024

Creating QR Code with Logo

 

import qrcode

from PIL import Image


# Generate QR code for a URL

url = "https://www.clcoding.com"

qr = qrcode.QRCode(version=1, error_correction=qrcode.constants.ERROR_CORRECT_L, box_size=8, border=5)

qr.add_data(url)

qr.make(fit=True)


# Create an image with logo

image = qr.make_image(fill_color="black", back_color="pink")


# Add logo to the QR code

logo = Image.open("clcodinglogo.png")

logo_size = img.size[0] // 4

# Use Image.LANCZOS for resizing with anti-aliasing

logo = logo.resize((logo_size, logo_size), Image.LANCZOS)  

image.paste(logo, ((img.size[0] - logo.size[0]) // 2, (img.size[1] - logo.size[1]) // 2))


# Save the image

image.save("qr_code.png")

Image.open("qr_code.png")


Explantion of the code: 


This code generates a QR code for a given URL (https://www.clcoding.com) using the qrcode library and then adds a logo to the QR code using the PIL (Python Imaging Library) module. Let's break down the code step by step:

Importing libraries:

qrcode: This library is used to generate QR codes.
Image from PIL: This module provides functions to work with images.
Generating the QR code:

The URL "https://www.clcoding.com" is assigned to the variable url.
A QRCode object is created with specific parameters:
version: The version of the QR code (higher versions can store more data).
error_correction: The error correction level of the QR code.
box_size: The size of each box in the QR code.
border: The width of the border around the QR code.
The URL data is added to the QR code using the add_data() method.
The make() method is called to generate the QR code, and fit=True ensures that the size of the QR code fits the data.
Creating an image with the QR code:

The make_image() method is called to create an image representation of the QR code, with specified fill and background colors (fill_color="black", back_color="pink").
The resulting image is stored in the variable image.
Adding a logo to the QR code:

An image of the logo (clcodinglogo.png) is opened using the Image.open() method and stored in the variable logo.
The size of the logo is calculated to be a quarter of the size of the QR code.
The logo is resized using the resize() method with anti-aliasing (Image.LANCZOS filter) to prevent distortion.
The logo is pasted onto the QR code image at the center using the paste() method.
Saving and displaying the final image:

The QR code image with the logo is saved as "qr_code.png" using the save() method.
The saved image is opened and displayed using Image.open().
This code demonstrates how to generate a customized QR code with a logo using Python. Make sure to replace "clcodinglogo.png" with the filename of your logo image.

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