Fixing compressed digital photos

[Dotan Cohen]

Lifehacker did a writeup on a Windows app that cleans up compressed
photos rather nicely:
http://lifehacker.com/software/featured-windows-download/fix-your-old-digital-pics-with-jpeg-enhancer-273502.php

Is this feasable to add to Digikam? Is there another Linux app that
can do something similar? I have many pictures from the wife's camera
phone that were shot before I had the chance to change the settings.

Dotan Cohen

http://lyricslist.com/
http://what-is-what.com/
_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users

[Arnd Baecker]

Hi Dotan,

On Sat, 30 Jun 2007, Dotan Cohen wrote:

> Lifehacker did a writeup on a Windows app that cleans up compressed
> photos rather nicely:
> http://lifehacker.com/software/featured-windows-download/fix-your-old-digital-pics-with-jpeg-enhancer-273502.php
>
> Is this feasable to add to Digikam? Is there another Linux app that
> can do something similar? I have many pictures from the wife's camera
> phone that were shot before I had the chance to change the settings.

First one has to find a good algorithm to do the job,
in the comments it is written that a deringer+deblocker
would presumably do the job.

Have a look at
http://www.greyc.ensicaen.fr/~dtschump/greycstoration/demonstration.html
In particular (move mous-over the image to see the difference)
http://www.greyc.ensicaen.fr/~dtschump/greycstoration/img/res_gnome.html
http://www.greyc.ensicaen.fr/~dtschump/greycstoration/img/res_reno.html
Does this roughly do what you want?

Greycstoration is included in digikam, though I have never tried
that myself before (in particular, whether the above
routines are accessible)...
Try it out  and please report back!

Best, Arnd
_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users

[Dotan Cohen]

On 30/06/07, Arnd Baecker <[hidden email]> wrote:

> Hi Dotan,
>
> On Sat, 30 Jun 2007, Dotan Cohen wrote:
>
> > Lifehacker did a writeup on a Windows app that cleans up compressed
> > photos rather nicely:
> > http://lifehacker.com/software/featured-windows-download/fix-your-old-digital-pics-with-jpeg-enhancer-273502.php
> >
> > Is this feasable to add to Digikam? Is there another Linux app that
> > can do something similar? I have many pictures from the wife's camera
> > phone that were shot before I had the chance to change the settings.
>
> First one has to find a good algorithm to do the job,
> in the comments it is written that a deringer+deblocker
> would presumably do the job.
>
> Have a look at
> http://www.greyc.ensicaen.fr/~dtschump/greycstoration/demonstration.html
> In particular (move mous-over the image to see the difference)
> http://www.greyc.ensicaen.fr/~dtschump/greycstoration/img/res_gnome.html
> http://www.greyc.ensicaen.fr/~dtschump/greycstoration/img/res_reno.html
> Does this roughly do what you want?
>
> Greycstoration is included in digikam, though I have never tried
> that myself before (in particular, whether the above
> routines are accessible)...
> Try it out  and please report back!
>
> Best, Arnd

Thanks, Arnd. The "Removing JPEG block artefacts" feature is exactly
what I was looking for. I've only tried it on the GREYCstoration
website, but I'll be giving it a try locally soon.

Dotan Cohen

http://lyricslist.com/
http://what-is-what.com/
_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users