pil example python-roboq (snippet)

Python pil example 'python-roboq'

Modules used in program:

import json
import zbar
import requests
import picamera
import time
import io

python python-roboq

Python pil example: python-roboq

#COMMANDOS NECESSÀRIOS:

#sudo apt-get update
#sudo apt-get install python-picamera python3-picamera
#pip install picamera
#pip install requests
#pip install image
#pip install hcsr04sensor



import io 
import time
import picamera
import requests
from PIL import Image
import zbar
import json
from hcsr04sensor import sensor

aws = "http://ec2-52-43-169-138.us-west-2.compute.amazonaws.com:8080/auth"


count = 0
TRIG = 20
ECHO = 26
while True:
    value = sensor.Measurement(TRIG, ECHO)
    raw_measurement = value.raw_distance()
    metric_distance = value.distance_metric(raw_measurement)
    print("The Distance = {} centimeters".format(metric_distance))

    if (metric_distance <= 24):    
        count = count + 1
        if count == 5:
            count = 0
        # Create the in-memory stream
        stream = io.BytesIO()
        with picamera.PiCamera() as camera:
            camera.start_preview()
            time.sleep(0.5)
            camera.capture('image'+str(count)+'.jpg')
            camera.capture(stream, format='jpeg')

        stream.seek(0)
        pil = Image.open(stream)
        scanner = zbar.ImageScanner()
        scanner.parse_config('enable')
        pil = pil.convert('L')
        width, height = pil.size
        raw = pil.tostring()
        image = zbar.Image(width, height, 'Y800', raw)
        scanner.scan(image)

        print('scanning')
        # extract results
        for symbol in image:
            # do something useful with results
            print(symbol.data    )
            json = {"deviceID": symbol.data}
             = requests.post(aws, data=json)

            print((r.status_code))
            print((r.text))




        # clean up
        del(image)

Python links

Learn Python: https://pythonbasics.org/
Python Tutorial: https://pythonprogramminglanguage.com