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Reading QR Codes in Python
Reading QR Codes in Python
- Last updated Apr 25, 2024
To read QR codes in Python, you can use the opencv-python library along with the pyzbar library, which is a wrapper for the ZBar barcode reader. Follow these steps to read a QR code using Python:
Install the Required Libraries
Install opencv-python and pyzbar library using pip:
pip install opencv-python pip install pyzbar
Read QR Code
Here's a simple example that demonstrates how to read a QR code image in python:
import cv2
from pyzbar.pyzbar import decode
def read_qrcode(image_path):
# Read the image
image = cv2.imread(image_path)
# Convert the image to grayscale
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
# Decode QR codes in the image
decoded_objects = decode(gray)
# Print information about each QR code
for obj in decoded_objects:
print("Type:", obj.type)
print("Data:", obj.data)
print()
# Provide the path to the image containing the QR code
image_path = 'qrcode.png'
read_qrcode(image_path)
Make sure you have a QR code image (example qrcode.png) in the specified path. Then, execute the Python script. The script will print the type and data of the QR code in the console.