camera.py

import os
import time
from threading import Thread
from queue import Queue
from picamera import PiCamera

from keras.models import load_model, Sequential
import numpy as np
from PIL import Image


camera = PiCamera()

class Camera(Thread):

    def __init__(self, q_write):
        Thread.__init__(self)
        self.name = "camera_thread"
        self.q_write = q_write

    def run(self):
        while True:
            time.sleep(1)
            self.take_photo()
            # Process your photo, do everything you want here
            os.system("zbarimg " + "pic.jpg > code.txt")
            with open('code.txt', "r") as text_file:
                data = text_file.readline()            
            if not data:
                print("not QR code")
                print("the fruit is...")
                img = Image.open("pic.jpg")
                img = img.resize((100,100), Image.ANTIALIAS)
                img = np.array(img).astype(np.uint8)
                img = np.expand_dims(img,axis=0)
                model = load_model("fruit_model.h5")
                print(model.predict_classes(img))
                cooking_time = 0
            else:
                data = data.split(':')
                cooking_time = int(data[1])
                print(cooking_time)

	        #According to the image, put the required cooking time here. If no cooking is required, put 0
            if cooking_time != 0:
                self.q_write.put(str(cooking_time))

    def take_photo(self):
	    camera.capture('pic.jpg')

if __name__ == "__main__":
    camera.capture('pic.jpg')

    os.system("zbarimg " + "pic.jpg > code.txt")

    with open('code.txt', "r") as text_file:
        data = text_file.readline()

    if not data:
        print("not QR code")
    else:
        data = data.split(':')
        print(int(data[1]))