import cv2
import numpy as np
from pyzbar.pyzbar import decode


def decoder(image):
	gray_img = cv2.cvtColor(image,0)
	barcode = decode(gray_img)

	for obj in barcode:
		points = obj.polygon
		(x,y,w,h) = obj.rect
		pts = np.array(points, np.int32)
		pts = pts.reshape((-1, 1, 2))
		cv2.polylines(image, [pts], True, (0, 255, 0), 3)

		barcodeData = obj.data.decode("utf-8")
		barcodeType = obj.type
		string = "Data " + str(barcodeData) + " | Type " + str(barcodeType)
		
		cv2.putText(frame, string, (x,y), cv2.FONT_HERSHEY_SIMPLEX,0.8,(255,0,0), 2)
		print("Barcode: "+barcodeData +" | Type: "+barcodeType)


if __name__ == "__main__":
	cap = cv2.VideoCapture(0)
	while True:
		ret, frame = cap.read()
		decoder(frame)
		cv2.imshow('Image', frame)
		code = cv2.waitKey(10)
		if code == ord('q'):
			break