# Segmentation(export nrrd) Data Open python

**URL:** <https://discourse.slicer.org/t/segmentation-export-nrrd-data-open-python/7005>\
**Category:** Support\
**Tags:** segmentation, extensions-manager, python\
**Created:** [June 3, 2019, 10:31am UTC](https://discourse.slicer.org/t/segmentation-export-nrrd-data-open-python/7005 "2019-06-03T10:31:18Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 3, 2019, 2:10pm UTC](https://discourse.slicer.org/t/segmentation-export-nrrd-data-open-python/7005/2 "2019-06-03T14:10:11Z")

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By default, segmentation is saved into a 4D nrrd file (to allow saving overlapping segments). If you nrrd reader cannot cope with that and your segments do not overlap then you can [export the segmentation to labelmap](https://discourse.slicer.org/t/get-label-map-node-from-segmentation-node/1137) and save that to nrrd file (that will be a simple 3D volume).

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