Created attachment 179723 [details] backtrace STEPS TO REPRODUCE 1. Open digiKam -> Import -> Add images -> Choose image and add 2. Select imported image -> Image Editor -> Enhance -> Restoration OBSERVED RESULT The program hangs and does not respond. It crashes with a segmentation error after closing Image Editor window EXPECTED RESULT Image restoration is correct SOFTWARE/OS VERSIONS Linux/KDE Plasma: ALT Workstation K 11.0 Beta KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 ADDITIONAL INFORMATION Attaching backtrace. It's coredump, which is debugged by gdb.
One alternative to this plusing, is to use GMic-Qt plugins which provides more than 500 filters, including Restoration stuff. In fact the GMic-Qt tool author is the same than Restoration Tool (this last one is a very old implementation). https://docs.digikam.org/en/image_editor/enhancement_tools.html#g-mic-qt-tool GMic-Qt is avaialble in the Linux AppImage bundle that we provides. Gilles Caulier
I can't reproduce freezing the Restoration Tool under Windows. The backtrace does not seem to contain the crashing thread. Maik