pil example rasp (snippet)

Python pil example 'rasp'

Modules used in program:

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

python rasp

Python pil example: rasp

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

aws = "http://******.us-west-2.compute.amazonaws.com:8080/auth"

count = 0
while True:
    count = count + 1
    if count == 5:
        count = 0
    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()

    # wrap image data
    image = zbar.Image(width, height, 'Y800', raw)

    # scan the image for barcodes
    scanner.scan(image)

    print('scanning')
    # extract results
    for symbol in image:
        # do something useful with results
        json = {"deviceID": symbol.data[1:-1]}
        r = 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