decoding code for the bitmap image

조회 수: 3 (최근 30일)
hari prasad
hari prasad 2015년 10월 16일
답변: Image Analyst 2015년 11월 25일
Sir can u plzz give the code to decode that bitmap image n get the text hidden it

답변 (3개)

Image Analyst
Image Analyst 2015년 10월 16일
Search VisionBib or the internet for papers on steganography or watermarking.

Walter Roberson
Walter Roberson 2015년 10월 16일
No. In order to retrieve the hidden information, you need to know how it was hidden.
If you were to somehow determine which bits had been altered compared to the original image, and if you also knew somehow which bits happened to be changed to the same thing they were before (e.g., a '1' was stored but it already happened to be a '1'), then you would be able to get a set of bits and values out. However, that would not tell you anything about the order the bits should be used in. Does it say "own goal" or does it say "law goon" ?

Image Analyst
Image Analyst 2015년 11월 25일
I've written a very simple steganography demo. It's in my File Exchange, so check it out: http://www.mathworks.com/matlabcentral/fileexchange/54155-steganography-hide-text-in-image

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