Moved sample files and updated documentation.

README.rst

@@ -23,8 +23,6 @@ Usage
 
 A `tutorial <https://stegano.readthedocs.io>`_ is available.
 
-There are also some examples in the folder
-`examples <https://github.com/cedricbonhomme/Stegano/tree/master/examples>`_.
 
 Use Stéganô as a library in your Python program
 '''''''''''''''''''''''''''''''''''''''''''''''
@@ -34,8 +32,8 @@ appropriate steganography technique. For example:
 
 .. code:: python
 
-    >>> from stegano import slsb
+    >>> from stegano import lsb
-    >>> secret = slsb.hide("./pictures/Lenna.png", "Hello World")
+    >>> secret = slsb.hide("./tests/sample-files/Lenna.png", "Hello World")
     >>> secret.save("./Lenna-secret.png")
 
 
@@ -44,13 +42,13 @@ Use Stéganô as a program
 
 .. code:: bash
 
-    $ slsb --hide -i ../examples/pictures/Lenna.png -o Lena1.png -m "Secret Message"
+    $ lsb --hide -i ./tests/sample-files/Lenna.png -o Lena1.png -m "Secret Message"
 
 Hide the message  with Sieve of Eratosthenes:
 
 .. code:: bash
 
-    $ slsb-set --hide -i ../examples/pictures/Lenna.png -o Lena2.png --generator eratosthenes -m 'Secret Message'
+    $ lsb-set --hide -i ./tests/sample-files/Lenna.png -o Lena2.png --generator eratosthenes -m 'Secret Message'
 
 
 Running the tests

docs/tutorial.rst

@@ -29,7 +29,7 @@ LSB method
     [GCC 4.9.2] on linux
     Type "help", "copyright", "credits" or "license" for more information.
     >>> from stegano import slsb
-    >>> secret = slsb.hide("./examples/pictures/Lenna.png", "Hello world!")
+    >>> secret = slsb.hide("./tests/sample-files/Lenna.png", "Hello world!")
     >>> secret.save("./Lenna-secret.png")
     >>> print(slsb.reveal("./Lenna-secret.png"))
     Hello world!
@@ -45,7 +45,7 @@ For JPEG and TIFF images.
     [GCC 4.9.2] on linux
     Type "help", "copyright", "credits" or "license" for more information.
     >>> from stegano import exifHeader
-    >>> secret = exifHeader.hide("./examples/pictures/20160505T130442.jpg",
+    >>> secret = exifHeader.hide("./tests/sample-files/20160505T130442.jpg",
                             "./image.jpg", secret_message="Hello world!")
     >>> print(exifHeader.reveal("./image.jpg"))
 
@@ -80,13 +80,13 @@ Display help
                             Output for the binary secret (Text or any binary
                             file).
 
-Hide and reveal a text message
+Hide and reveal a text message with the LSB method
-------------------------------
+--------------------------------------------------
 
 .. code-block:: bash
 
-    $ slsb --hide -i ./pictures/Lenna.png -o ./pictures/Lenna_enc.png -m HelloWorld!
+    $ lsb --hide -i ./tests/sample-files/Lenna.png -o ./Lenna_enc.png -m HelloWorld!
-    $ slsb --reveal -i ./pictures/Lenna_enc.png
+    $ lsb --reveal -i ./Lenna_enc.png
     HelloWorld!
 
 Hide and reveal a binary file
@@ -95,21 +95,72 @@ Hide and reveal a binary file
 .. code-block:: bash
 
     $ wget http://www.gnu.org/music/free-software-song.ogg
-    $ slsb --hide -i ./pictures/Montenach.png -o ./pictures/Montenach_enc.png -f ./free-software-song.ogg
+    $ lsb --hide -i ./tests/sample-files/Montenach.png -o ./Montenach_enc.png -f ./free-software-song.ogg
     $ rm free-software-song.ogg
-    $ slsb --reveal -i ./pictures/Montenach_enc.png -b ./song.ogg
+    $ lsb --reveal -i ./Montenach_enc.png -b ./song.ogg
 
-Hide and reveal a message by using the description field of the image
+Hide and reveal a text message with the LSB method and generated sets
 ---------------------------------------------------------------------
 
+Sets are used in order to select the pixels where the message will be hidden.
+
 .. code-block:: bash
 
-    $ ./exif-header.py --hide -i ./Elisha-Cuthbert.jpg -o ./Elisha-Cuthbert_enc.jpg -f ./fileToHide.txt
+    echo "Hide the message  with the Sieve of Eratosthenes..."
-    $ ./exif-header.py --reveal -i ./Elisha-Cuthbert_enc.jpg
+    lsb-set --hide -i ./tests/sample-files/Montenach.png -o ./surprise.png --generator eratosthenes -m 'Joyeux Noël!'
+    echo ""
+
+    echo "Try to reveal with Mersenne numbers..."
+    lsb-set --reveal --generator mersenne -i ./surprise.png
+    echo ""
+
+    echo "Try to reveal with fermat numbers..."
+    lsb-set --reveal --generator fermat -i ./surprise.png
+    echo ""
+
+    echo "Try to reveal with carmichael numbers..."
+    lsb-set --reveal --generator carmichael -i ./surprise.png
+    echo ""
+
+    echo "Try to reveal with Sieve of Eratosthenes..."
+    lsb-set --reveal --generator eratosthenes -i ./surprise.png
+
+
+An other example:
+
+.. code-block:: bash
+
+    # Hide the message - LSB with a set defined by the identity function (f(x) = x).
+    lsb-set --hide -i ./tests/sample-files/Montenach.png -o ./enc-identity.png --generator identity -m 'I like steganography.'
+
+    # Hide the message - LSB only.
+    lsb --hide -i ./tests/sample-files/Montenach.png -o ./enc.png -m 'I like steganography.'
+
+    # Check if the two generated files are the same.
+    sha1sum ./enc-identity.png ./enc.png
+
+    # The output of lsb is given to lsb-set.
+    lsb-set --reveal -i ./enc.png --generator identity
+
+    # The output of lsb-set is given to lsb.
+    lsb --reveal -i ./enc-identity.png
+
+
+
 
 Steganalysis
-------------
+============
 
 .. code-block:: bash
 
-    $ steganalysis-parity -i ./pictures./Lenna_enc.png -o ./pictures/Lenna_enc_st.png
+    # Hide the message  with Sieve of Eratosthenes
+    lsb-set --hide -i ./tests/sample-files/Ginnifer-Goodwin.png -o ./surprise.png --generator eratosthenes -m 'Very important message.'
+
+    # Steganalysis of the original photo
+    steganalysis-parity -i ./tests/sample-files/Ginnifer-Goodwin.png -o ./surprise_st_original.png
+
+    # Steganalysis of the secret photo
+    steganalysis-parity -i ./surprise.png -o ./surprise_st_secret.png
+
+    # Reveal with Sieve of Eratosthenes
+    lsb-set --reveal --generator eratosthenes -i ./surprise.png

examples/example1.sh

@@ -1,6 +0,0 @@
-#!/bin/sh
-
-wget http://www.gnu.org/music/free-software-song.ogg
-lsb --hide -i ./pictures/Montenach.png -o ./pictures/Montenach_enc.png -f ./free-software-song.ogg
-rm free-software-song.ogg
-lsb --reveal -i ./pictures/Montenach_enc.png -b ./zik.ogg

examples/example2.sh

@@ -1,26 +0,0 @@
-#!/bin/sh
-
-#
-# Test the LSB method with sets.
-#
-
-echo  "We're going to test a little Stéganô..."
-
-echo "Hide the message  with the Sieve of Eratosthenes..."
-lsb-set --hide -i ./pictures/Montenach.png -o ./surprise.png --generator eratosthenes -m 'Joyeux Noël!'
-echo ""
-
-echo "Try to reveal with Mersenne numbers..."
-lsb-set --reveal --generator mersenne -i ./surprise.png
-echo ""
-
-echo "Try to reveal with fermat numbers..."
-lsb-set --reveal --generator fermat -i ./surprise.png
-echo ""
-
-echo "Try to reveal with carmichael numbers..."
-lsb-set --reveal --generator carmichael -i ./surprise.png
-echo ""
-
-echo "Try to reveal with Sieve of Eratosthenes..."
-lsb-set --reveal --generator eratosthenes -i ./surprise.png

examples/example3.sh

@@ -1,22 +0,0 @@
-#!/bin/sh
-
-# Some tests of the LSB method which uses sets (slsb-set). Sets are used in order to select the pixels where the
-# message will be hidden.
-
-
-# Hide the message - LSB with a set defined by the identity function (f(x) = x).
-lsb-set --hide -i examples/pictures/Montenach.png -o ~/enc-identity.png --generator identity -m 'I like steganography.'
-
-# Hide the message - LSB only.
-lsb --hide -i examples/pictures/Montenach.png -o ~/enc.png -m 'I like steganography.'
-
-
-# Check if the two generated files are the same.
-sha1sum ~/enc-identity.png ~/enc.png
-
-
-# The output of slsb is given to slsb-set.
-lsb-set --reveal -i ~/enc.png --generator identity
-
-# The output of slsb-set is given to slsb.
-lsb --reveal -i ~/enc-identity.png

examples/example4.sh

@@ -1,21 +0,0 @@
-#!/bin/sh
-
-#
-# Test the LSB method with sets.
-#
-
-
-echo "Hide the message  with Sieve of Eratosthenes..."
-lsb-set --hide -i ./pictures/Ginnifer-Goodwin.png -o ./surprise.png --generator eratosthenes -m 'Probably the most beautiful woman in the world.'
-echo ""
-
-echo "Steganalysis of the original photo..."
-steganalysis-parity -i ./pictures/Ginnifer-Goodwin.png -o ./surprise_st_original.png
-
-echo "Steganalysis of the secret photo..."
-steganalysis-parity -i ./surprise.png -o ./surprise_st_secret.png
-echo ""
-
-echo "Reveal with Sieve of Eratosthenes..."
-echo "The secret is:"
-lsb-set --reveal --generator eratosthenes -i ./surprise.png

tests/test_exifHeader.py

@@ -35,7 +35,7 @@ class TestEXIFHeader(unittest.TestCase):
         """
         Test hiding the empty string.
         """
-        secret = exifHeader.hide("./examples/pictures/20160505T130442.jpg",
+        secret = exifHeader.hide("./tests/sample-files/20160505T130442.jpg",
                                 "./image.jpg", secret_message="")
         #secret.save(""./image.png"")
 
@@ -47,7 +47,7 @@ class TestEXIFHeader(unittest.TestCase):
         messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
 
         for message in messages_to_hide:
-            secret = exifHeader.hide("./examples/pictures/20160505T130442.jpg",
+            secret = exifHeader.hide("./tests/sample-files/20160505T130442.jpg",
                                     "./image.jpg", secret_message=message)
 
             clear_message = exifHeader.reveal("./image.jpg")
@@ -55,7 +55,7 @@ class TestEXIFHeader(unittest.TestCase):
             self.assertEqual(message, message)
 
     def test_with_image_without_exif_data(self):
-        secret = exifHeader.hide("./examples/pictures/Elisha-Cuthbert.jpg",
+        secret = exifHeader.hide("./tests/sample-files/Elisha-Cuthbert.jpg",
                                 "./image.jpg", secret_message="")
         #secret.save(""./image.png"")
 
@@ -64,7 +64,7 @@ class TestEXIFHeader(unittest.TestCase):
         self.assertEqual(b"", clear_message)
 
     def test_with_png_image(self):
-        secret = exifHeader.hide("./examples/pictures/Lenna.png",
+        secret = exifHeader.hide("./tests/sample-files/Lenna.png",
                                 "./image.png", secret_message="Secret")
         #secret.save(""./image.png"")
 

tests/test_lsb.py

@@ -35,7 +35,7 @@ class TestLSB(unittest.TestCase):
         """
         Test hiding the empty string.
         """
-        secret = lsb.hide("./examples/pictures/Lenna.png", "")
+        secret = lsb.hide("./tests/sample-files/Lenna.png", "")
         secret.save("./image.png")
 
         clear_message = lsb.reveal("./image.png")
@@ -46,7 +46,7 @@ class TestLSB(unittest.TestCase):
         messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
 
         for message in messages_to_hide:
-            secret = lsb.hide("./examples/pictures/Lenna.png", message)
+            secret = lsb.hide("./tests/sample-files/Lenna.png", message)
             secret.save("./image.png")
 
             clear_message = lsb.reveal("./image.png")
@@ -54,20 +54,20 @@ class TestLSB(unittest.TestCase):
             self.assertEqual(message, clear_message)
 
     def test_with_long_message(self):
-        with open("./examples/lorem_ipsum.txt") as f:
+        with open("./tests/sample-files/lorem_ipsum.txt") as f:
             message = f.read()
-        secret = lsb.hide("./examples/pictures/Lenna.png", message)
+        secret = lsb.hide("./tests/sample-files/Lenna.png", message)
         secret.save("./image.png")
 
         clear_message = lsb.reveal("./image.png")
         self.assertEqual(message, clear_message)
 
     def test_with_too_long_message(self):
-        with open("./examples/lorem_ipsum.txt") as f:
+        with open("./tests/sample-files/lorem_ipsum.txt") as f:
             message = f.read()
         message += message*2
         with self.assertRaises(Exception):
-            lsb.hide("./examples/pictures/Lenna.png", message)
+            lsb.hide("./tests/sample-files/Lenna.png", message)
 
     def tearDown(self):
         try:

tests/test_lsbset.py

@@ -35,7 +35,7 @@ class TestLSBSet(unittest.TestCase):
         """
         Test hiding the empty string.
         """
-        secret = lsbset.hide("./examples/pictures/Lenna.png", "",
+        secret = lsbset.hide("./tests/sample-files/Lenna.png", "",
                                 "eratosthenes")
         secret.save("./image.png")
 
@@ -47,7 +47,7 @@ class TestLSBSet(unittest.TestCase):
         messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
 
         for message in messages_to_hide:
-            secret = lsbset.hide("./examples/pictures/Lenna.png", message,
+            secret = lsbset.hide("./tests/sample-files/Lenna.png", message,
                                     "eratosthenes")
             secret.save("./image.png")
 
@@ -58,7 +58,7 @@ class TestLSBSet(unittest.TestCase):
     def test_hide_and_reveal_with_bad_generator(self):
         message_to_hide = "Hello World!"
 
-        secret = lsbset.hide("./examples/pictures/Lenna.png", message_to_hide,
+        secret = lsbset.hide("./tests/sample-files/Lenna.png", message_to_hide,
                             "eratosthenes")
         secret.save("./image.png")
 

tests/test_red.py

@@ -36,13 +36,13 @@ class TestRed(unittest.TestCase):
         Test hiding the empty string.
         """
         with self.assertRaises(AssertionError):
-            secret = red.hide("./examples/pictures/Lenna.png", "")
+            secret = red.hide("./tests/sample-files/Lenna.png", "")
 
     def test_hide_and_reveal(self):
         messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
 
         for message in messages_to_hide:
-            secret = red.hide("./examples/pictures/Lenna.png", message)
+            secret = red.hide("./tests/sample-files/Lenna.png", message)
             secret.save("./image.png")
 
             clear_message = red.reveal("./image.png")
@@ -50,10 +50,10 @@ class TestRed(unittest.TestCase):
             self.assertEqual(message, clear_message)
 
     def test_with_too_long_message(self):
-        with open("./examples/lorem_ipsum.txt") as f:
+        with open("./tests/sample-files/lorem_ipsum.txt") as f:
             message = f.read()
         with self.assertRaises(AssertionError):
-            red.hide("./examples/pictures/Lenna.png", message)
+            red.hide("./tests/sample-files/Lenna.png", message)
 
     def tearDown(self):
         try: