[Suggestion] Lens correction filter proposal


(Alex) #1

Hi,

I would like to propose/suggest to add lens correction plugin based on
lensfun library. Currently lensfun includes converter from
Adobe profiles too so is extremely versatile. Software that would most
probably benefit:

  • Krita - doesn’t have any lens correction
  • photoflow - has experimental, incomplete feature
  • flowblade - not sure if build in lens correction is profile based
  • GIMP - would benefit a little as there is working GimpLensfun plugin
    but is experimental on windows

G’MIC already has lots of photo post-production filters like denoisers
and color graders so that kind of plugin would perfectly fit - all in
one place.
I’m not developer myself but I wanted to share idea.

Best regards.


Need sample RAW image taken with a lens fully supported by LensFun
(Pat David) #2

I think that @Carmelo_DrRaw is already working on LensFun integration for PhotoFlow…


(Alex) #3

Indeed, but idea was to add this filter to G’MIC so all apps would benefit.
I’ve also found, that g’mic is on kdenlive roadmap: https://kdenlive.org/2016/08/kdenlive-16-08-0-is-here/ so one more app.


(Pat David) #4

I’m sorry - I don’t know why I thought PhotoFlow was relevant to your question about G’MIC. :frowning: I blame not enough coffee!


(Alex) #5

It’s been relevant! Photoflow uses g’mic so there had been chance that dev would put code into g’mic and many apps would benefit - one great filter for all.

But as Photoflow dev said:

So raw converters need their own lens correction.
I’m not sure here why, but maybe g’mic in photoflow stacks after gamma and camera response so even though g’mic is able to work in linear space it doesn’t have access to linear data.