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Closes #4.

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Cédric Bonhomme 2016-05-21 16:53:43 +02:00
parent eeb8132b4b
commit 6cd22dfe72
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2 changed files with 11 additions and 8 deletions
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7
stegano/lsbset/lsbset.py
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@ -62,12 +62,13 @@ def hide(input_image_file, message, generator_function, auto_convert_rgb=False):
message_bits += '0' * ((3 - (len(message_bits) % 3)) % 3)
npixels = width * height
if len(message_bits) > npixels * 3:
raise Exception("""The message you want to hide is too long (%s > %s).""" % (len(message_bits), npixels * 3))
len_message_bits = len(message_bits)
if len_message_bits > npixels * 3:
raise Exception("""The message you want to hide is too long (%s > %s).""" % (len_message_bits, npixels * 3))
generator = getattr(generators, generator_function)()
while index + 3 <= len(message_bits) :
while index + 3 <= len_message_bits :
generated_number = next(generator)
(r, g, b) = img_list[generated_number]