#!/usr/bin/env python
#-*- coding: utf-8 -*-

# Stéganô - Stéganô is a basic Python Steganography module.
# Copyright (C) 2010-2011  Cédric Bonhomme - http://cedricbonhomme.org/
#
# For more information : http://bitbucket.org/cedricbonhomme/stegano/
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>

__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.1 $"
__date__ = "$Date: 2011/12/29 $"
__license__ = "GPLv3"

try:
    from stegano import steganalysisParity
except:
    print("Install Stegano: sudo pip install Stegano")

from PIL import Image

from optparse import OptionParser
parser = OptionParser()
parser.add_option("-i", "--input", dest="input_image_file",
                help="Image file")
parser.add_option("-o", "--output", dest="output_image_file",
                help="Image file")
parser.set_defaults(input_image_file = './pictures/Lenna.png',
                    output_image_file = './pictures/Lenna_steganalysed.png')
(options, args) = parser.parse_args()

input_image_file = Image.open(options.input_image_file)
output_image = steganalysisParity.steganalyse(input_image_file)
output_image.save(options.output_image_file)