Digikam file takes up a lot of space

[Gilles Caulier]

I will add detail here : the thumbnails database store small image using
wavelets compression algorithm (PGF open source format). It's optimized a
lots compared to open desktop way used in the past which store thumbnail in
PNG (LZW compression).

Gilles Caulier

2018-01-06 11:37 GMT+01:00 Manuel Bock <mbs at mbsnet.de>:

> Hi Philip,
>
> the thumbnails-digicam.db is NOT the database containing all the metadata,
> but stores the thumbnails of your collection (smaller size preview
> pictures). Thus digicam can even show you previews of pictures located on
> offline media not connected to your laptop currently. If you are running
> out of space, you could
>
> * either store your pictures on external media, after processing them
>
> I keep my images of the current project on my laptop and move the older
> ones to an external storage (asides of backup and archiving, of course)
>
> * or, if even this does not help, have digikam show the original pictures
> and skip generating thumbnails - which might make scrolling through your
> collection slower and you loose previews of offline collections
>
> digikam -> Preferences -> Preview -> Preview shows full picture - is, as
> far as I remember, the option to make it skip generating thumbnails. You
> can then delete thumbnails-digicam.db. If it is not regenerated by
> rescanning your collection on next start, this was the right setting. (Keep
> in mind: I am using a different interface language, so don’t stick to the
> letter for the names of the options mentioned before.)
>
>
> regards
> Manuel
>
>
> Am 06.01.2018 um 11:06 schrieb WILDLIFE-HELP A.N. <
> wildlife.help at durham.ac.uk>:
>
> Hi All,
>
> I use digiKam to tag camera trap images for research purposes. I run it on
> macOS Sierra version 10.12.6 with 2.9 GHz i5 processor, 8 GB RAM, and 120
> GB hard drive.
>
> In my database folder there is a file called: "thumbnails-digikam.db"
> which takes up over 38 GB of space and I am constantly running out of space
> on my MacBook. I was told that you should not store your database on an
> external drive. Is this true? If I change the directory of my database to
> an external hard drive would this affect it in anyway?
>
> What about on Windows OS, can you have the database directory on a
> external hard drive?
>
> Thank you for your time.
>
> Kind Regards,
> Philip Faure
>
> 0 (+27) 71 841 8361 <+27%2071%20841%208361>
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