diff --git a/TextPixel/README.md b/TextPixel/README.md
index 70202bd..9e46a48 100644
--- a/TextPixel/README.md
+++ b/TextPixel/README.md
@@ -5,11 +5,21 @@ Encode / Decode between strings and PNG images. Can be imported or used on the c
 
 One channel is used to store the character, and the other two are randomized, so the output looks different every time.
 
+When used from the commandline, encoding and decoding looks like this:
+
+	> textpixel.py encode text filename
+	> textpixel.py decode filename
+
+In the commandline, the parameter `text` can be the filename of a .txt file, and its contents will become the text. This is not the case for python usage.
+
 python example:
 
     encoded_string = textpixel.encode_string('Wow, look!')
     textpixel.write_pixels(encoded_string, 'wowlook.png')
 
+    decoded_string = textpixel.decode_image('wowlook.png')
+    print(decoded_string)
+
 
 commandline example:
 
diff --git a/TextPixel/example.png b/TextPixel/example.png
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diff --git a/TextPixel/wowlook.png b/TextPixel/wowlook.png
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index 0000000..b440421
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