Technical advice needed/Enhancing tif files taken from 12,000 feet

T
Posted By
thomaslund
Aug 28, 2007
Views
490
Replies
18
Status
Closed
Attempting to enhance several tif file photos on CD in ranges from 10MB to 85MB. Photos were taken by Army Corp of Engineers at 12,000ft with aircraft. What do you suggest whould be the best way to enhance these photos utilizing Photoshop CS3 Extended? I’m needing the best possible enhancement. Several photo shops in this area (WV) have Photoshop programs of some kind, but unaware (not trained) how to do it (????) Final clarity on photos will greatly depend on the purchase of the product. Thank you for your time and consideration. Using Compaq Presario computer with XP. There were no problems downloading or with Photoshop CS3 Extended program. Please send reply to also. Thanks again!

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Bob Levine
Aug 28, 2007
Don’t you have Photoshop CSI?

I do this stuff all the time…my favorite part is all the cool sound effects when you zoom in on a molecular level.

Bob
JJ
John_Joslin
Aug 28, 2007
What do you mean by "enhancing"?

Answers are given here in the forum so that all can benefit.
DM
dave_milbut
Aug 28, 2007
and note that CSI like quality where you can pick out the face of the suspect from the cloudy bumper of a parked car in an underground garage is only available… on CSI…
I
ID._Awe
Aug 28, 2007
Thomas:

You have to be more specific about what you mean by ‘enhanced’.
DR
Donald_Reese
Aug 28, 2007
I am guessing he wants excessive haze reduced, and suggest he post an example for us to take a crack at. Use- <http://www.pixentral.com/>
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thomaslund
Aug 28, 2007
Enhanced, meaning to better see items on the ground level. As the photos are zoomed into near ground level, definition is lost. Again, photos were taken from 12,000 feet. Also, some are older photos (1984/black and white). Photos need to be clear enough for court cases. I had no idea you gentlemen would answer so quick. Thanks guys! Donald, I’ll take you up on sending you one at pixentral.
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thomaslund
Aug 28, 2007
Tried sending pic via pixentral. Rejected due to size (27.9MB).
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thomaslund
Aug 29, 2007
Photo posted in accordance with FLANG BLAMMITs advice on mediafire website. Sharing URL: http://www.mediafire.com/?89oj9wu1ddd <‘http://www.mediafire.com/?89oj9wu1ddd‘> HTML: <http://www.mediafire.com/?89oj9wu1ddd>
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Phosphor
Aug 29, 2007
HAH! Funny, Thomas.

People have yelled "FLANG BLAMMIT!" at me (My Dad invented it over 40 years ago to avoid saying "worse" words), but I’ve never actually been called that as a name.

🙂 You can just call me Phos….

Hey, that MediFire site’s pretty cool, eh?
DM
dave_milbut
Aug 29, 2007
As the photos are zoomed into near ground level, definition is lost.

not going to happen. for example. choose a road. pick a car. you can see it kinda looks like a car, but more like a little blob. you’re not going to get any better from those photos. you’re not going to be able to tell what make and model that car is from the resolution of those photos with any app out there (unless the gov’t really DOES have it’s own photoshop CSI version).
DM
dave_milbut
Aug 29, 2007
what i’m trying to say is, i guess, it still depends on what your definition of "enhanced" is. you can make the roads stand out better and see some detail, but never to the level i described in my last post…
DR
Donald_Reese
Aug 29, 2007
Thomas, i only wanted you to post a downsized sample here using pixentral. anyway i downloaded your image and opened it in camera raw, and adjusted the contrast, and used the controls in raw to bring some depth back to it. not sure if this is what your after or not, but it is a portion before and after.

< http://www.pixentral.com/show.php?picture=1gDqu8Bp0QU2LWQ7Uw sUnPKDAgXDce>
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Rastamon
Aug 29, 2007
If you don’t need those particular photos, you can go to one of those satellite map sites that allow you to zoom in to a great degree of detail.
MV
Mathias_Vejerslev
Aug 29, 2007
Seriously, you need Photoshop CSI edition… You can’t squeeze more detail out of the photo than is already present. You can try elarging the image with resamplers like Genuine Fractals, or you could try enhancing contrast with Unsharp Mask (12, 90, 0) but again, it won’t somehow magically add detail to the photo.
T
TLL
Aug 29, 2007
All very interesting advice. Especially that CSI version of PS!

Anyway, I do this kind of work for a living and I’ll second (or third) the notion that you are severely limited by two things – AMT (altitude above mean terrain), and the file size of the scan. 12,000′ AMT imagery is not designed for real up-close-and-personal viewing. It’s for covering a lot of earth efficiently. Mapping major features is what high altitude photography is for.

If you want to zero in on specific geographic areas, look into the USGS image data bases. There narrow your search to imagery derived from 5000′ or less. There is a lot of DOQ (digital orthophoto quad map) data out there. Link: <http://www.usgs.gov/>

Forget about satellite images, heck their grabbed from miles up. While truly amazing for their abilities, what we can have access to doesn’t fit the bill when it comes to "enhanced detail" IMHO.

Now, scanning those 12k’ images @14 microns would give you a 800+MB file for RGB – a heck of a lot more data than you have at the moment. You can get ‘into’ one of those images really well, but there’s no way to create detail that isn’t in the original image.

Hope that helps, and if you’re in Vegas next week I’m presenting on this kind of stuff @Photoshop World West – Adobe Birds of a Feather: For Engineers, Architects and Manufacturing Professionals

Link: <http://www.photoshopworld.com/>

Later, TLL
P
PeterK.
Aug 29, 2007
Besides that, I believe there are a lot of restrictions about what kind of enhancement, if any, is allowed on images that are meant to be used as evidence in court. Even sharpening an image will introduce or enhance artifacts and can result in misleading information which would be disallowed.
MD
Michael_D_Sullivan
Aug 31, 2007
Here is a piece of it enhanced using a curve adjustment layer and smart sharpening:

< http://www.pixentral.com/show.php?picture=126BEtYr8D1RysdWs1 gEaszhdFmy0>

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