Hello!
I mistakenly began segmenting on volumes without specifying the correct image spacing. Currently they are set to 1 mm and I learned how to change them to 0.002 mm by editing the volume properties.
How do I apply this to my segmentations? I have messed around with the specify geometry option with little success. Thank you!
Probably easiest is to export to labelmap, change the spacing, and then re-convert to segmentation.
You can also apply and harden a scaling transform (linear transform with scaling factors in the first 3 values of the diagonal) to both your image and the segmentation.
Or, save the segmentation as .nhdr file and edit the spacing in the header using a text editor. The .nrrd file is not suitable for modification in a text editor, because it also contains binary data, which is often corrupted by text editors.