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[Segmentation] Watershed does always generate a 3D static seg. Even if dynamic segmentation was generated.
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Description

Plugin namedynamic timestep =0dynamic timestep != 0static t=0static t =2
Watershed??? 4??? 4
  1. I couldn't perform the operation on those images / the result was always the same for all steps (I had trouble finding right parameters that change something), but anyways: it created a 3D segmentation in the end which should not be the case if we created a dynamic segmentation before, right?

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Event Timeline

floca removed thomass as the assignee of this task.Aug 3 2020, 9:46 AM
floca triaged this task as High priority.
floca created this task.
floca removed a project: Restricted Project.
floca added a subscriber: thomass.

Test image: 3D+t Heart

If you perform a dynamic segmentation using the Watershed tool, it creates a new segmentation no matter if you created a dynamic segmentation before.

The dynamic segmentation stays 4D (which is correct) but the new '_Watershed' segmentation is 3D (bug).
The result is stored in that new segmentation not the dynamic one.

To not blow up the data manager with this, the _Watershed should not be created but instead the dynamic segmentation should be used. In the dynamic case, a 4D segmentation should be the result of the Watershed tool.

floca added a revision: Restricted Differential Revision.Aug 30 2020, 8:48 PM