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TonySomerset
Joined: 16 Jul 2011
Posts: 1
Location: Somerset, UK
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 Posted: Sat Jul 16, 2011 5:35 am Post subject: countering heavily waterstained and coloured background |
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Just got hold of invaluable scans of old documents. They have a heavy parchment background and are badly water stained. I want to manipulate the image the best I can, to be able to best read what writing is decipherable.
See attached typical image.
These are the only and best images I have and need to work with them.
I just get by with photoshop 7.
Can anyone point me in the right direction please.
What tactic should I use to lighten the background and heighten the contrast with the ink writing?
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| badly water-stained and heavy background. |
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thehermit
Joined: 05 Mar 2003
Posts: 3987
Location: Cheltenham, UK
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| Posted: Sun Jul 17, 2011 7:43 am Post subject: |
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Welcome to the forum Tony.
It's going to be a case of using multiple curve adjustment layers targeted carefully. You perhaps could get away with a cheeky use of multiple layers set to a blending mode such as Multiply, but that would be a quick and dirty solution.
I would cruise the channels as a matter of course to see if good information is stored in any of them, and I would convert to multiple colour spaces to check the channels.
There is a case for "you can't polish a ...." depending upon the resolution and the actual data that is remaining you may only ever get a partial result.
You could try mixing your channels to produce a better result, without looking at the image it's obvious that most inks are made of blue or black pigments, applying the blue and the green channels could give the ink a little more 'oomph'.
Perhaps a calculations command too could help in part, I have a feeling it's going to be a combination of a few techniques.
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_________________
If life serves you lemons, make lemonade! |
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jerryb4417
Joined: 20 Dec 2008
Posts: 710
Location: Oklahoma
PS Version: photoshop cs5
OS: win7 pro 64 bit, i7-3.2g, GTS 450,
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| Posted: Sun Jul 17, 2011 12:19 pm Post subject: |
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