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Latent Print Examination » Questions from FP Experts for FP Experts... Processing, Testimony, and Technical Matters » Has anyone used the background removal filters in the veripic photo lab to analyze prints? « Previous Next »

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Orin
Posted on Friday, December 16, 2005 - 12:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I have used veripic and have been really impressed by the performance of the software. It is faster than anything I have tried (compared to Extensis and ACDSee 8). The thumbnails are out of the world fast. The print quality seems higher than photoshop can produce although the tradeoff seems to be a slight speed decrease for the better quality. (A trade I would make any day.)

The image processing capabilities are far superior to playing with the color channels since the software is capable of selectively filtering some pixels. This is true image processing. When you play with the color channels in photoshop all pixels are affected.

Veripic seems very popular. I have seen it used in our local police department and a hospital before purchase. A number of other local PD's seem to use it too. Why don't you go to your local law enforcement agency and ask them if they will show you their veripic system.

Webservant note: The above anonymous posting reads much like an advertisement or commercial and is from a California computer network (where Veripic is based).

The phrase "go to your local law enforcement agency" seems to indicate the poster does not realize most fingerprint experts already work in law enforcement agencies (or retired from them). Also, the poster's promotion of "selectively filtering some pixels" is NOT a good idea if you are trying to perform objective analysis of evidence. That is similar to old fashioned dodging and burning in a darkroom, where you selectively change only part of a photo to make that area appear the way you want. Such subjective manipulation is inferior to simultaneous adjustment or filtering of all the pixels in an image (such as by using Photoshop's color channels tool).

Modifying just a portion of an image to create or produce an effect you desire in that limited area is sort of like using a pencil to go over (darken) a faint ridge in a latent print because you want that ridge to look more similar to a suspect's known print... just plain wrong.

I suspect the above posting is from a Veripic employee, but I may be wrong and welcome direct correspondence from the poster to clarify the matter. In the mean time, always remember, caveat emptor.
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George Reis
Posted on Friday, August 26, 2005 - 12:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I have seen demos of Veripic many times and used to have a copy of it several years ago. I don't personally see any advantage of it over Adobe Photoshop or other image processing applications. Last year at the EPIC conference they claimed that they could remove backgrounds that other software could not. So, when I made my presentation at the same conference, I demonstrated the same thing in Photoshop - with results that I think are superior. I personally am a bit leary of any sales representative who claims that no other product can do something. Image processing is image processing.

George Reis
Imaging Forensics
www.imagingforensics.com
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photoshop user
Posted on Wednesday, August 24, 2005 - 12:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Josh,

What are you currently using to visualize latent prints on your computer? You may already have the capibility to filter out backgrounds and you just need someone to show you how.
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Josh
Posted on Tuesday, August 23, 2005 - 06:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

We are considering installing the veripic lab (www.veripic.com)on our computers and i'm curious if anyone has used it's background removal filters to examine latent prints. The sales rep who gave us an online demo removed the background on a print with just a couple of clicks, but i was wondering if anyone's used this in the real world, and if so, how easy was it/how well did it work?

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