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Search for FFD8 which is the start of image and FFD9 which is the end of image, you'll then get the image size. Refer to detail JPG format here <a href="http://en.wikipedia.org/wiki/JPEG" rel="ugc">http://en.wikipedia.org/wiki/JPEG</a>&nbsp;for more information.
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Search for FFD8 which is the start of image and FFD9 which is the end of image, you'll then get the image size. Refer to detail JPG format here http://en.wikipedia.org/wiki/JPEG [http://en.wikipedia.org/wiki/JPEG] for more information.

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<br />
there is no possible to find length of file depend only on output.<br />
<br />
cause the <br />
the solution of above question is from output :<br />
<br />
ffd9 end at 0082565 and the length of file is 0082566.<br />
<br />
=================<br />
I am not understand how 0082565 has been calculated and how length become 0082566( 0082565 +1) <br />
<br />
thanks
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there is no possible to find length of file depend only on output.

cause the
the solution of above question is from output :

ffd9 end at 0082565 and the length of file is 0082566.

=================
I am not understand how 0082565 has been calculated and how length become 0082566( 0082565 +1)

thanks

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many Thanks <br />
<br />
you are helping me alot
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<div class="content wysiwyg-content">
Hi<br />
<br />
after i run this command to search about end marker of jpeg file:<br />
<br />
xxd image.raw | grep -i &quot;ffd9&quot; | head -n 7 ===&gt;<br />
<br />
0082560 2903 9068 ffd9 4bb1 f6d2 c69c 1a4c 7195 &nbsp; &nbsp; &nbsp;(..h[.K......nq<br />
<br />
how i can calculate length of jpeg file include footer depend on output ?<br />
<br />
<br />
<br />
<br />

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</div>


Hi

after i run this command to search about end marker of jpeg file:

xxd image.raw | grep -i "ffd9" | head -n 7 ===>

0082560 2903 9068 ffd9 4bb1 f6d2 c69c 1a4c 7195      (..h[.K......nq

how i can calculate length of jpeg file include footer depend on output ?






find length of file depend on end marker

Digital forensics encompasses the recovery and investigation of material found in digital devices, often in relation to computer crime. Digital forensics investigations have a variety of applications. The most common is to support or refute a hypothesis before criminal or civil (as part of the electronic discovery process) courts. The technical aspect of an investigation is divided into several sub-branches, relating to the type of digital devices involved; computer forensics, network forensics, forensic data analysis and mobile device forensics. The typical forensic process encompasses the seizure, forensic imaging (acquisition) and analysis of digital media and the production of a report into collected evidence.