[digiKam-users] managing old documents

[leoutation at gmx.fr]

You'll get much time  and better result with taking an other photo with
better light conditions. Your photo has contrast distribution problem.
It's darker at the bottom of the picture, maybe because you shot indoor
near a window. So, it's not easy to increase its contrast...
Try to shot again, *outdoor*, when sky is cloudy, with no shadow.

On 5/6/20 11:17 AM, jdd at dodin.org wrote:
> Hello :-)
>
> What I will ask is not about digikam, but showfoto or may be GIMP.
>
> work in progress:
>
> http://dodin.org/luciendodin/index.php?n=Biographie.LucienDodinPereCahier
>
> (sorry, only in french)
>
> It's a document from 1883 (yes, no error :-) by my gran father.
>
> Given the nature of the document: very fragile old paper, too large for
> a scanner (I couldn't find an A3 scanner at reasonable price), I use
> photos. Now from a smartphone moto G4+, very good image wise.
>
> But. I get results like this one:
>
> https://www.cjoint.com/doc/20_05/JEgivUDTH5k_IMG-20200505-144724.jpg
>
> pretty hard to read :-(
>
> On a photo forum, a friend said he could have a pretty good result with
> an application I don't know "color fx pro", obviously not on Linux :-(,
> that is already much better than the original (for my purpose: better
> readability)
>
> https://www.cjoint.com/doc/20_05/JEgiMLo0vzP_Untitled.JPG
>
> the setup is:
>
> https://www.cjoint.com/doc/20_05/JEgiMk8lNnP_Capture-d%E2%80%99e%CC%81cran-2020-05-06-a%CC%80-10.37.48.png
>
>
> obviously it's a tone control that makes clear tones lighters and medium
> one (text) darker
>
> is there a way to have a similar (or better result with showfoto?
> eventually with GIMP (I'm much more familiar with showfoto than from gimp)?
>
> thanks
> jdd

--
Maderios