[Digikam-devel] [Bug 308141] New: NR needs some updates and improvements

[Vamp898]

https://bugs.kde.org/show_bug.cgi?id=308141

            Bug ID: 308141
          Severity: wishlist
           Version: 2.8.0
          Priority: NOR
          Assignee: digikam-devel at kde.org
           Summary: NR needs some updates and improvements
    Classification: Unclassified
                OS: Linux
          Reporter: vamp898 at web.de
          Hardware: Archlinux Packages
            Status: UNCONFIRMED
         Component: Noise Reduction
           Product: digikamimageplugins

If you checkout RawTherapee from HG it have some new Options for NR which blow
digiKam away just like that.

Here are two example screenshots how the finished images look like

Its a ISO 25'600 shot from the 5D Mark III

Lot of detail (more noise): http://img6.imagebanana.com/img/eri1dtu9/screen.jpg
Less Noise (less details): http://img6.imagebanana.com/img/nx1pzkp6/screen1.jpg

The results are far away from what you get in digiKam (in a negative way).

With the new "Luminance Detail" switch you can just push Luminence Noise
Reduction to 100 and then increase Luminence detail to the amount of detail you
want.

The best balance of details and NR i ever seen so far, just incrdible.

When watching the screenshots, remember again that those are ISO 25'600 and
look at the neck of the Head on the Left.

Try to get those details with digiKam without a lot of grain and mysterious
artifacts.

So i recommend to look at there Source (its FLOSS) and check how they done it +
adopt it.

If digiKam would have the same NR like RawTherapee, it would be able to be my
ultimative tool for everything, right now i have to open High-ISO Shots
RawTherapee always :(

Reproducible: Always

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