[digiKam-users] Camera and lens ID failing for lens correction

[Maik Qualmann]

The first step has been taken, the Olympus make and model are recognized. For 
the lens, we only read out the lens model based on a bug report (# 311295). 
With this camera, Lensfun expects the full name of the lens type from the Exif 
metadata.

Maik

Am Mittwoch, 25. März 2020, 14:17:46 CET schrieb Gilles Caulier:
> Hi Maik,
> 
> We have already a wrapper about lens manufacturer in LensFun DK interface :
> 
> https://invent.kde.org/kde/digikam/-/blob/master/core/libs/dimg/filters/lens
> /lensfuniface.cpp#L259
> 
> So new customisations can be add at this place...
> 
> Enjoy (:=)))
> 
> Gilles
> 
> Le mer. 25 mars 2020 à 08:54, Maik Qualmann <metzpinguin at gmail.com> a écrit 
:
> > The problem is the assignment of the manufacturer. The PEN-F is in
> > "Olympus Imaging Corp." registered. In the image, however, "OLYMPUS
> > CORPORATION" is given. Olympus has 3 different manufacturer names in the
> > Lensfun DB, we would have to check all 3.
> > 
> > Maik
> > 
> > Am Mi., 25. März 2020 um 13:52 Uhr schrieb Gilles Caulier 
<caulier.gilles at gmail.com>:
> >> Hum Lensfun 0.3.95 is an alpha release published while 2019.
> >> 
> >> You can try to use the digiKam Linux bundle 7.0.0-beta3 which use the
> >> current code from github (last implementation and last database)
> >> 
> >> But take a care, do  not use yet in production as it will convert some
> >> table in database, and you will not able to switch back to 6.4.0.
> >> 
> >> Just create a new user, create a small collection with test image, and
> >> start digiKam 7.0.0. a new DB will be created in user space.
> >> 
> >> The 7.0.0 test bundle can be found here :
> >> 
> >> https://files.kde.org/digikam/
> >> 
> >> Gilles Caulier
> >> 
> >> Le mer. 25 mars 2020 à 07:56, Marc Sitkin <marcsitkin at gmail.com> a écrit 
:
> >> > Thanks, I'll check it out.
> >> > Here's what I got from the help menu:
> >> > digikam version 6.4.0
> >> > LensFun: 0.3.95-0
> >> > 
> >> > I manually updated lensfun after my digiKam install to 03.95-1 not
> >> > 0.3.2 (not 0.0.95, sorry for the typo)
> >> > 
> >> > Not sure If we have found the problem yet. Curious as to why darkTable
> >> > seems to find the lens info from what I assume is the same library.
> >> > 
> >> > Will I need to completely reset up my digiKam app, or will it pick up
> >> > the config I already have? If I need to reconfigure it manually, I'll
> >> > probably hold off until I'm done with the testing phase.>> > 
> >> > On Wed, Mar 25, 2020 at 6:36 AM Gilles Caulier 
<caulier.gilles at gmail.com> wrote:
> >> >> Hi Marc,
> >> >> 
> >> >> The digiKam official package that you use must certainly be compiled
> >> >> with the official release of Lensfun library which provide Lens
> >> >> database.
> >> >> 
> >> >> Help/Component Info dialog will give you the right LensFun version
> >> >> used inside. If it's 0.3.2, this is the last version published
> >> >> officially by LensFun team few years ago !
> >> >> 
> >> >> With the Linux AppImage bundle that we compile digiKam with last
> >> >> LensFun code where the Lens database is maintained well. The problem
> >> >> is the non release plan from Lensfun.
> >> >> 
> >> >> https://lensfun.github.io/
> >> >> 
> >> >> So, just download the official digiKam Linux AppImage and try again.
> >> >> 
> >> >> Best
> >> >> 
> >> >> Gilles Caulier
> >> >> 
> >> >> Le mer. 25 mars 2020 à 05:44, Marc Sitkin <marcsitkin at gmail.com> a 
écrit :
> >> >> > Here you go.
> >> >> > dK 6.4.0-7 via pamac from "extras" on Manjaro Linux/Gnome 19.02
> >> >> > 
> >> >> > https://www.dropbox.com/sh/dcqwist0rrtnlzc/AABd8-MbqmZit2R0X4k3sYKHa
> >> >> > ?dl=0
> >> >> > 
> >> >> > Thanks
> >> >> > 
> >> >> > On Wed, Mar 25, 2020 at 2:36 AM Maik Qualmann 
<metzpinguin at gmail.com> wrote:
> >> >> >> Which digiKam version do you use? Possibly provide a test image.
> >> >> >> 
> >> >> >> Maik
> >> >> >> 
> >> >> >> Am Dienstag, 24. März 2020, 23:57:39 CET schrieb Marc Sitkin:
> >> >> >> > Hi-
> >> >> >> > I'm finding that the lens distortion correction is not
> >> >> >> > automatically
> >> >> >> > finding the right settings. I can apply them manually and get
> >> >> >> > good results,
> >> >> >> > but it's pretty slow.
> >> >> >> > 
> >> >> >> > I've installed Lensfun 0.0.95-1.
> >> >> >> > I also see an earlier version is available, from Github.
> >> >> >> > 
> >> >> >> > Any recommendations?
> >> >> > 
> >> >> > --
> >> >> > Marc Sitkin
> >> >> > 2020 Mexico Gallery
> >> >> > Marc Sitkin Photography Web Site
> >> >> > Instagram
> >> > 
> >> > --
> >> > Marc Sitkin
> >> > 2020 Mexico Gallery
> >> > Marc Sitkin Photography Web Site
> >> > Instagram