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Article #819Re: Manipulation of Courtroom Evidence
From: Gregory A. Hooten
Date: Fri, 23 Feb 1990 18:28
Date: Fri, 23 Feb 1990 18:28
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This type of deception has gone on for a long time, and there is a whole battery of tests that can be run to see if the photo is real. One is to check for the consistency of background lighting, or the abrupt changes in shading. Remember that to make a forgery, you had to scan it in in the first place, edit it, and then get it back to a photo. All of this can be done by an investigator. As closely as you can look at the photo, they can too. There will always be bits that were not changed to the correct pattern, or that were cut out of one photos background, and placed into another. These bits can be read. It is easy to fool many people, but it is more difficult to fool them for long. Greg
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!jarthur!elroy.jpl.nasa.gov!decwrl!limbo!taylorShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!jarthur!elroy.jpl.nasa.gov!decwrl!limbo!taylor From: gahooten@orion.arc.nasa.gov (Gregory A. Hooten) Newsgroups: comp.society Subject: Re: Manipulation of Courtroom Evidence Message-ID: <450@limbo.Intuitive.Com> Date: 23 Feb 90 18:28:18 GMT Sender: taylor@limbo.Intuitive.Com Organization: NASA - Ames Research Center Lines: 12 Approved: taylor@Limbo.Intuitive.Com