QR detector python code

 refer to code:

.

import cv2

#pip install pyzbar

from pyzbar.pyzbar import decode

def scan_qr_code():

# Start the webcam

cap = cv2.VideoCapture(0)

cap.set(3, 640) # Set the width of the window

cap.set(4, 480) # Set the height of the window

while True:

success, img = cap.read()

if not success:

print("Failed to grab frame")

break

# Decode the QR Code

for barcode in decode(img):

# Get the QR Code position

my_data = barcode.data.decode('utf-8')

pts = barcode.polygon

if len(pts) == 4: # If we have 4 points, then we have a QR code

pts2 = barcode.rect

cv2.putText(img, my_data, (pts2[0], pts2[1]), cv2.FONT_HERSHEY_SIMPLEX, 0.9, (255, 0, 255), 2)

for point in pts:

cv2.circle(img, (point[0], point[1]), 5, (0, 255, 0), cv2.FILLED)

# Display the frame

cv2.imshow('QR Code Scanner', img)

if cv2.waitKey(1) & 0xFF == ord('q'): # Press 'q' to quit

break

cap.release()

cv2.destroyAllWindows()

if __name__ == "__main__":

scan_qr_code()

..

you need to install pyzbar

Thank you.

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