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added zlib compression #3

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added zlib compression #3

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13 changes: 12 additions & 1 deletion stegano.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,7 @@
from PIL import Image
import zlib
import array

import numpy as np

def image_load(infilename):
Expand Down Expand Up @@ -86,7 +89,10 @@ def decode(img):
with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
publishing software like Aldus PageMaker including versions of Lorem Ipsum."""
# data = "lets make some dummy data"
data_binary = [np.binary_repr(ord(i), width=8) for i in data]

data_binary = bytes(data, 'utf-8')
data_binary_compressed = zlib.compress(data_binary, 9)
data_binary = ["{0:08b}".format(i) for i in data_binary_compressed]

# img_encoded = image_create(encode(img_bin, data_binary))
img_encoded = encode(img_bin, data_binary)
Expand All @@ -108,4 +114,9 @@ def decode(img):

# data_decoded = decode(image_load('./images/output-new.jpg'))
data_decoded = decode(img_ip)
data_decoded = [int(i,2) for i in data_decoded]
# print(dc)

data_decoded = array.array('B', data_decoded).tostring()
data_decoded_unompressed = zlib.decompress(data_decoded)
print(data_decoded)