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Spotting altered areas

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Old 06-11-2008, 11:48 PM
donpablo donpablo is offline
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Spotting altered areas

[NUDITY WARNING] (no rude bits)

Hi guys and gerls this is my first post so I hope this hasnt been covered before..

So I have some images and I'm trying to figure out if they have been altered
mostly to change the apperance of a face and im wondering if a tattoo has been edited out ..

Basically what Im asking is how would one go about identifying if these images have infact been altered and what are the tell tales of this type of editing ?

thanks for any tips/hints anyone can offer..

Last edited by donpablo; 06-13-2008 at 08:41 AM. Reason: added warning
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Old 06-12-2008, 05:49 AM
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Swampy Swampy is offline
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Re: Spotting altered areas

Adobe has been developing some algorithms to do exactly what you are asking, but it is proprietary software at this time. It is being developed for the forensics and journalistic trades to detect "fauxtography".

You may find hints in the meta data comparing dates of the shoot and dates of file modification to see if it's ever been opened in an editor. Short of that, I don't know other than a good eye.
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Old 06-12-2008, 02:56 PM
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0lBaldy 0lBaldy is offline
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Re: Spotting altered areas

You might find this interesting:
"A Pictures Worth.. Image Analysis and Forensics"
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Old 06-12-2008, 06:45 PM
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DCobb DCobb is offline
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Re: Spotting altered areas

Much of lthe same information contained in OlBaldy's post can also be found in Adobe Photoshop Forensics by Cynthia Baron. ISBN 1-59863-405-4. 336 pages with appendix and bibliography. Copyright 2008 Thomson Course Technology $34.99.

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Old 06-12-2008, 09:02 PM
donpablo donpablo is offline
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Re: Spotting altered areas

ok so Im trying to see if a tattoo has been edited out in the first picture, see the circled area in the 2nd pic , also I wonder if the face has been altered in the third pic , it seems a bit too smooth and lighted...

opinions ?

pm if you need to see the full pics.


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