Catching empty segmentations (Exception)

[pr4deepr]

Hi
If there are any errors with segmentation, on occasion, the code will run without any warnings or errors.
For example, if using vpt-plugin-cellpose2, I accidently used cellpose instead of cellpose2 in the config file.
The segmentation completed really quickly without any warnings or errors.
Having a look at the code, you could print a warning/error with more information out to the terminal/log file.

The issue is at this code block:

vizgen-postprocessing/src/vpt/segmentation/segmentations_factory.py

Lines 29 to 33 in 166fb24

	try:
	m = import_module(".segment", package=package_name)
	return getattr(m, "SegmentationMethod")
	except Exception:
	return EmptySegmentation()

Cheers
Pradeep