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

[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