[digiKam-users] color profile saving

[Gilles Caulier]

Le lun. 18 juil. 2022 à 13:32, Daniel Bauer <linux at daniel-bauer.com> a écrit :
>
> (sorry for unintended PM Maik, I clicked the wrong button)
>
> Am 18.07.22 um 13:09 schrieb Maik Qualmann:
> > Please look under Help-> Components dialog for the Exiv2 version. If it
> > is smaller than 0.27.1, color profiles in PNG files will be destroyed
> > when writing metadata.
> >
> > Maik
>
> Digikam uses 0.26...
> But exiv2 27.5 is (also) installed on my system. How can I make that
> digikam uses it?

you cannot without to rebuild whole digiKam source code. Exiv2 0.26
and 0.27 are binary not compatible...

>
> (I can save PNG's with embedded color-profile in Gimp, also using
> ImageMagick. So somehow my system can, but digikam not...)

I'M rewrite whole PNG image including the metadata chunks.

Exiv2 is able to touch only metadata, without touching image data.
It's faster in all cases.

Gilles