It will have to recreate the databases, but now when you open images in the Image Editor, they should show up and you should be able to edit them. The only pattern I can spot is that it fails on largish files (bigger than 1MB). Simply pulling lscr.io/linuxserver/digikam:latest should retrieve the correct image for your arch, but you can also pull specific arch images via tags. To compile this code, you need CMake and Qt5 Core and Gui modules under Linux. digiKam store thumbnails with wavelets PGF codec to reduce size with a very good quality, better than JPEG. ![]() Upgraded Ubuntu to 20.04.02 and digiKam (upgraded to 6.4.0) now shows only handful of thumbnails (out of. Q: On all my albums, digiKam fails to generate thumbnails on some images. This small program is a simple converter to process digiKam database PGF blob images to PNG. These databases can be found in the folder where you collection is stored, like these: Digikam databases.ĭelete these databases, then restart DigiKam. DigiKam update not showing thumbnails after upgrade. Either way, the solution is pretty simple: delete the digikam databases. I tried lots of other solutions for this problem, from installing older versions of Digikam to newer versions, but it turns out the problem was really just that digikam databases for my photo collection had either been (1) corrupted because of the size of my collection or (2) had run into problems because I use the same database across two computers. ![]() What was happening is that I would open Digikam and when I would try to open an image into the Image Editor, the Editor wouldn’t show anything, like this: File opened in the Image Editor in digiKam, but nothing shows up. ![]() Since it took me so long to figure it out, I figured I should note this problem here for anyone else who runs into it. 1/ create fe fresh account on your system > 2/ log to this account > 3/ start digiKam and create a clean setup with an empty collection > 4/ import suspect JPEG in your collection > 5/ check if problem is reproducible. I ran into a really weird problem with Digikam that took me a couple of days to figure out.
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