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Restore damaged or old pics

Mar 8, 2012, 01:54
Post: #1
Restore damaged or old pics
Have about 25 old pics, shot back in early 60's that I ned to restore. Find it strange that there is not a tutoral for this in GIMP. Any ideas out there?
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Mar 8, 2012, 03:25
Post: #2
RE: Restore damaged or old pics
Interesting, search Youtube. If you will post an example of the pic I oculd give you a tip possibly on what I would do if I wanted to adjust it. Also I used to use photobucket alot way back when to make adjustments in an emergency. Although Gimp rules, you may find a quick solution there, but I would recommend still giving us a shot.

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Mar 8, 2012, 05:31
Post: #3
RE: Restore damaged or old pics
(Mar 8, 2012 03:25)Pl3th0r4x Wrote:  Interesting, search Youtube. If you will post an example of the pic I oculd give you a tip possibly on what I would do if I wanted to adjust it. Also I used to use photobucket alot way back when to make adjustments in an emergency. Although Gimp rules, you may find a quick solution there, but I would recommend still giving us a shot.


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Mar 8, 2012, 05:36
Post: #4
RE: Restore damaged or old pics
Thanks for your help, believe I have found what I need over at "Lynda.com"of course it's Photoshop but it will be a pretty good guide for me. As this is my first posting here excuse my screw ups. I attached (somewhere) one of the pics in question.
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Mar 9, 2012, 07:58
Post: #5
RE: Restore damaged or old pics
I see sorry I was very busy last night, and at school all day today. I will make a touch up of my own and explain. No worry about screw ups. I am in no way a pro. You can ask ofnuts he has to bandage me up every time I show up 'round here. (Cool pic btw.)

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Mar 9, 2012, 08:50 (This post was last modified: Mar 9, 2012 08:51 by Pl3th0r4x.)
Post: #6
RE: Restore damaged or old pics
K heres what I got. If I had more time or this was a personal project I would have obsessed over this and done even better. But since I had an extrememly long week heres what I came up with.

I used the colors option alot. If I were you, I would just take a couple of these settings I'm telling you and test them out. I could have probably done a much better job had I had some extra time, like I said, or if I had the passion for them.

Levels>
This is pretty easy. Just take the little arrows from both sides and top and bottom, and just bring them in a little bit until the pic has a better lightness.

Hugh Saturation>
I then used hugh saturation to add a more desired lightness effect and then even raised the hugh a little to add just a tad of blue. At this point the field in the background became much clearer.

O yes I also went to filters>enhance>unmask sharpness. My intention was to sharpen up the pic a bit. Dont think I really changed much, but search for how to change sharpness in Gimp and I bet that would help. Someone here will know.

Curves>
This one is a little tricker. What I did was make about three points all very close to the original line. IMO I would make it look really funky to see all the areas you can change ie, face, background, truck, etc, and then hit "reset" and do your best to set it accordingly.

Brightness and Contrast>
Lastly I raised contrast and brightness higher but not much. This gave you the final image. If I were to do it again I may have done this a little differently, but I'm not a pro and I am also super tired and busy. Now I have said 3x! Smile


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Mar 9, 2012, 14:11 (This post was last modified: Mar 9, 2012 14:17 by ofnuts.)
Post: #7
RE: Restore damaged or old pics
Levels/Curves/Contrast/Brightness are just 4 different ways to do the very same things. If you don't want to ruin the picture, do this transformation only once (this usually means playing directly with the curves). Why so?

- in Gimp, a color channel can take only 256 values (0-255) (8bits/channel)(in a B&W image, all three colors have the same value for a pixel)
- All these transforms above map each of these 0-255 values to an identical or different value also in the 0-255 range.
- In most cases, some different source values end up having the same target value.
- The net result is that you have less possible different values in the output than you had in the input. This shows in the histogram as a "comb" and in the image as uniform areas with sharp limits. You can easily lose in the order of 20 % of the values, so after 4 transforms, you are left with (0.8^4)*256=100 values.

This said the picture by the OP seems to have already suffered this fate, since if displays large uniform areas (grandad's hands and knee, for instance, or grandma's collar). Is this really the picture as scanned?

Now answering your questions on
https://Gimp-Forum.net
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Mar 9, 2012, 17:07
Post: #8
RE: Restore damaged or old pics
Well, there aint no arguing with that at least.

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