hide info in pic

gistfile1.txt

import stepic
from PIL import Image
import sys

useage = 'useage:\nencode: python hideinfo.py IMG INFO OUTPUT\ndecode: python hideinfo.py IMG'

def encode_img(img, info, output):
    img = Image.open(img)

    d = open(info)
    info = d.read()
    d.close()

    img = stepic.encode(img, info)

    img.save(output)


def decode_img(img):
    img = Image.open(img)
    print stepic.decode(img)

if len(sys.argv) == 2:
    decode_img(sys.argv[1])
elif len(sys.argv) == 4:
    encode_img(sys.argv[1], sys.argv[2], sys.argv[3])
else:
    print useage