There is now a dedicated mini app for matching.

Is this still an open thing?

A practical solution is to shift the download feature into the python wrapper.

After discussion with @kislinsk, it's presumed that Ubuntu 22.04 comes with OpenSSL 3 which is incompatible to OpenSSL 1.1.1. Qt from the online installer was built against OpenSSL 1.1.1, though. That's why it is not working. It probably works Ubuntu setups with system Qt 5 which I guess is patched to work with system OpenSSL 3.
Therefore, so the way out, without any fixes to get this running on Ubuntu 22.04 is on the actual build machine when using system Qt5.

Qt 5.15 is built against OpenSSL 1.1.1, however, Ubuntu 22.04 provides only the incompatible OpenSSL 3, which is why the calls cannot be resolved. The Qt 5 apt packages (resp. system Qt 5) is probably patched to work with OpenSSL 3, though, which is why it works on build machines that use system Qt 5 instead of the Qt5 online installer. System libs are not packed into installers, though, so it only works in the build tree and installers will be broken on other systems.

Code test and patched for 2D image support.

I am not sure what happens when 2D 3 channel is loaded for segmentation. Never tested the behaviour of the SegWithPreviewTool API. From my side, I need to update the wrapper to accommodate for 3 channel images. Of course, it's a straightforward change but at the moment, 3-channel won't work.

In T29650#248947, @gaoh wrote:

@k656s has an example dataset. I am still at the release version before (I think 2022.10?) but I will update to the current release. Could this already help?

Yes, it could. I thought something like this was already introduced. @kislinsk, or?

what is the problem here/where do you lose the other channels? shouldn't it work out of the box already?

@k656s has an example dataset. I am still at the release version before (I think 2022.10?) but I will update to the current release. Could this already help?
If not, I would vote for the task list view reinit after loading opiton.

@gaoh do you have example data to reproduce this situation. That would help to replicate it and search for the best solution.
Which version of MITK was it?

there is a DerivePointerAlignment option which basically unifies it on a file by file basis, in case there is no agreement. But I agree to Ralf with using the "left" style and put it next to the type

That is a first shorted list. Other apps and plugins are already ruled out (e.g. due to Vigra dependency). We no shuold assess which of those can really stay in the main mitk repo.

It's a feature.