[Digikam-devel] Season of KDE

Thu Oct 30 18:11:18 GMT 2014

Thanks!

I edited the proposal to reflect the changes. As time was short, I
submitted the proposal and can be seen here:
https://season.kde.org/?q=view_projects&prg=32&p=284

Any last-minute changes are welcomed.

On Thu, Oct 30, 2014 at 10:42 PM, Gilles Caulier <caulier.gilles at gmail.com>
wrote:

> Paper is excelent.
>
> Please add some link in current implementation, which is very well
> documented :
>
> Wavelets NR algorithm to fix image :
>
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/filters/nr/nrfilter.cpp
>
> NR estimate analyser to compute NR filter settings automatically :
>
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/filters/nr/nrestimate.cpp
>
> Note : the algorithm is described in this paper :
>
>
> https://drive.google.com/file/d/0B7yq-xFihT0_UXQ2RHJ4eTdTNFk/view?usp=sharing
>
> NREstimate is also use in Image Qulity Sorter algorithm :
>
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/database/imgqsort/imgqsort.cpp
>
> The goal of this tool is to parse image to detect quality. In this
> case, NR is estimated and image will be tagged automatically, using
> Pick Label. Note that other quality factor are also tested, as, blur,
> exposure, etc...
>
> There are also few test CLI tools, especially this one to report noise
> estimation and detection :
>
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/tests/testnrestimate.cpp
>
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/tests/imgqsort/detectnoise/detectnoise.cpp
>
> Best
>
> Gilles Caulier
>
> 2014-10-30 9:19 GMT+01:00 Koushik S <skoushik333 at gmail.com>:
> > Hi,
> >
> >     I finished a draft of my proposal. Here's the link -
> >
> https://docs.google.com/document/d/1DTIqDqyIZNmcb0cUuL1xs4_Do9104h5yhej8LxCzm5Y/edit?usp=sharing
> >
> > Any suggestions/edits are welcome.
> >
> >
> > On Thu, Oct 30, 2014 at 12:41 AM, Koushik S <skoushik333 at gmail.com>
> wrote:
> >>
> >> I researched a more on this topic, and as I understand, the threshold
> >> needs to be set adaptively. Here's a paper on the topic:
> >> http://homepages.cae.wisc.edu/~ece533/project/f03/yangyang.pdf
> >>
> >> Let me know if I'm in the right direction. Also, does the proposal need
> to
> >> have all the specific implementation details at this point? Because that
> >> would take a quite a while, and it's also very hard to know beforehand,
> in
> >> my case.
> >>
> >> On Wed, Oct 29, 2014 at 9:39 PM, Koushik S <skoushik333 at gmail.com>
> wrote:
> >>>
> >>> I checked out the source code, and it seems there is an estimator
> >>> function for calculating noise in the image. I don't really know how I
> could
> >>> improve upon the current implementation. Do you have any specific
> >>> ideas/solutions on approaching this?
> >>>
> >>> On Wed, Oct 29, 2014 at 12:11 PM, Koushik S <skoushik333 at gmail.com>
> >>> wrote:
> >>>>
> >>>> Hi,
> >>>>
> >>>>     That sounds very interesting, and closely related to my field of
> >>>> interest. I haven't looked at the code which does the noise
> reduction, but
> >>>> I'll do so right away, and in addition I'll search for any research
> papers
> >>>> on this topic. Any guidance/suggestions on the proposal is welcomed.
> I'll
> >>>> prepare the draft proposal as soon as possible, since the deadline is
> fast
> >>>> approaching.
> >>>>
> >>>> On Tue, Oct 28, 2014 at 7:25 PM, Gilles Caulier
> >>>> <caulier.gilles at gmail.com> wrote:
> >>>>>
> >>>>> Hi,
> >>>>>
> >>>>> There is a function to really improve in current implementation :
> >>>>> Noise detection on image to tune Wavelets Noise Reduction settings
> >>>>> automatically.
> >>>>>
> >>>>> Currently, this feature work for some kind of noise and shot
> condition
> >>>>> (for ex with high ISO). I have some pictures with noise which are not
> >>>>> detected, and reduction cannot be completed automatically. User must
> >>>>> play with settings to try noise reduction effect.
> >>>>>
> >>>>> What do you think about ?
> >>>>>
> >>>>> Gilles Caulier
> >>>>>
> >>>>> 2014-10-28 10:30 GMT+01:00 Koushik S <skoushik333 at gmail.com>:
> >>>>> > Thanks a lot!
> >>>>> >
> >>>>> > Note: The deadline is on 31st Oct.
> >>>>> >
> >>>>> > On Tue, Oct 28, 2014 at 1:43 AM, Gilles Caulier
> >>>>> > <caulier.gilles at gmail.com>
> >>>>> > wrote:
> >>>>> >>
> >>>>> >> Hi,
> >>>>> >>
> >>>>> >> I will take a look tomorow morning if i can propose a subject for
> >>>>> >> Season
> >>>>> >> of KDE
> >>>>> >>
> >>>>> >> Best
> >>>>> >>
> >>>>> >> Gilles Caulier
> >>>>> >>
> >>>>> >> 2014-10-27 11:11 GMT+01:00 Koushik S <skoushik333 at gmail.com>:
> >>>>> >> > Hello,
> >>>>> >> >
> >>>>> >> >     I stumbled upon this programme from KDE, and wanted to ask
> if
> >>>>> >> > digiKam
> >>>>> >> > was participating in it. I started fixing small bugs, and wanted
> >>>>> >> > to work
> >>>>> >> > on
> >>>>> >> > a project, and this seemed like a good motivator and also a good
> >>>>> >> > learning
> >>>>> >> > experience.  Can anyone guide me on the project that could be
> >>>>> >> > drafted
> >>>>> >> > for
> >>>>> >> > digiKam?
> >>>>> >> >
> >>>>> >> > --
> >>>>> >> > regards,
> >>>>> >> > Koushik. S
> >>>>> >> >
> >>>>> >> > _______________________________________________
> >>>>> >> > Digikam-devel mailing list
> >>>>> >> > Digikam-devel at kde.org
> >>>>> >> > https://mail.kde.org/mailman/listinfo/digikam-devel
> >>>>> >> >
> >>>>> >> _______________________________________________
> >>>>> >> Digikam-devel mailing list
> >>>>> >> Digikam-devel at kde.org
> >>>>> >> https://mail.kde.org/mailman/listinfo/digikam-devel
> >>>>> >
> >>>>> >
> >>>>> >
> >>>>> >
> >>>>> > --
> >>>>> > regards,
> >>>>> > Koushik. S
> >>>>> >
> >>>>> > _______________________________________________
> >>>>> > Digikam-devel mailing list
> >>>>> > Digikam-devel at kde.org
> >>>>> > https://mail.kde.org/mailman/listinfo/digikam-devel
> >>>>> >
> >>>>> _______________________________________________
> >>>>> Digikam-devel mailing list
> >>>>> Digikam-devel at kde.org
> >>>>> https://mail.kde.org/mailman/listinfo/digikam-devel
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> regards,
> >>>> Koushik. S
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> regards,
> >>> Koushik. S
> >>
> >>
> >>
> >>
> >> --
> >> regards,
> >> Koushik. S
> >
> >
> >
> >
> > --
> > regards,
> > Koushik. S
> >
> > _______________________________________________
> > Digikam-devel mailing list
> > Digikam-devel at kde.org
> > https://mail.kde.org/mailman/listinfo/digikam-devel
> >
> _______________________________________________
> Digikam-devel mailing list
> Digikam-devel at kde.org
> https://mail.kde.org/mailman/listinfo/digikam-devel
>

-- 
regards,
Koushik. S
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