There is a site dedicated to image forensics.
h t t p : / / forensicphotoshop . blogspot . com /
If you scroll to the bottom of the home page there is contact information for Jim Hoerricks. I am not saying he is the only person that can do that type of work, however you did not provide any locality information so I am just giving you a person that is easy to contact.
Joined: Sep 22, 2012 Posts: 1 Location: United States
Posted: Sun Sep 23, 2012 12:08 pm Post subject: Contract Image Validation
be careful of the suggestion regarding a review of the .jpg hash value. although many .jpg file generator programs are similar, they are not always the same. there a different variables for quality of the .jpg file alone, that said one .jpg image in one light and at a specific angle will give a different hash value from another .jpg image file in similar light and a seemingly exact zoom and angle of incidence.
On a side note a flattened image can be recreated into a layered document, but it is never the original. If it is saved in a .TIFF format more can be gleaned from this and possibly provide the answers that you are looking for. _________________ ...it's like nailing JELL-O to a tree!
Glen M. Copeland, RCDD
3015 Redstone Drive
Arlington, TX 76001
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