python_qr_code_decoding.py

"""
Decode all QR-code images in a directory.
Dependencies:
sudo pip install pypng
sudo apt-get update
sudo apt-get install libzbar-dev
sudo pip install zbar
sudo pip install pillow
sudo pip install qrtools
"""

import qrtools
from os import listdir
from os.path import isfile, join

mypath = "encoded"

onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]

#print len(onlyfiles)

#onlyfiles = onlyfiles[:10]

#print onlyfiles

qr = qrtools.QR()

for f in onlyfiles:
  try:
    qr.decode(join(mypath, f))
    print qr.data, f
  except:
    print "Exception at "+f+"\n\n"