from picamera.array import PiRGBArray
from picamera import PiCamera
import time
import cv2 as cv
camera = PiCamera()
camera.resolution = (640, 480)
camera.framerate = 32
rawCapture = PiRGBArray(camera, size=(640, 480))
time.sleep(0.1)
for frame in camera.capture_continuous(rawCapture, format="bgr", use_video_port=True):
image = frame.array
output_image = image.copy()
detector = cv.QRCodeDetecor()
data, points, straight_qrcode = detector.detectAndDecode(image)
if data:
print(f'decoded data: {data}')
for i in range(4):
cv.line(output_image, tuple(points[i][0]), tuple(points[(i + 1) % len(points)][0]), (0, 0, 255), 4)
cv.imshow('QR', output_image)
print(f'QR code version: {((straight_qrcode.shape[0] - 21) / 4) + 1}')
cv.imshow("Frame", image)
key = cv.waitKey(1) & 0xFF
rawCapture.trancate(0)
if key == ord("q"):
break
