# Extraction of 2D Image from 3D Volume

**URL:** https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674
**Category:** Support
**Created:** [July 18, 2019, 6:17pm UTC](https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674 "2019-07-18T18:17:37Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![uwo27](https://avatars.discourse-cdn.com/v4/letter/u/f17d59/32.png) [@uwo27](https://discourse.slicer.org/u/uwo27)
#### Post date: [July 18, 2019, 6:17pm UTC](https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674/1 "2019-07-18T18:17:37Z")

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Operating system: macOS mojave  
Slicer version: 4.10.2

Hi, I am looking for help on how to extract a 2D image from a 3D volume.

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### Author: ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [July 18, 2019, 6:29pm UTC](https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674/2 "2019-07-18T18:29:33Z")

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There are many ways to interpret your question.

I’ll start with the simplest and suggest that you take a look at the Screen Capture module, which allows you to capture an image from a volume in a controlled way.

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### Author: ![uwo27](https://avatars.discourse-cdn.com/v4/letter/u/f17d59/32.png) [@uwo27](https://discourse.slicer.org/u/uwo27)
#### Post date: [July 18, 2019, 7:20pm UTC](https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674/3 "2019-07-18T19:20:02Z")

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Sorry, wasn’t clear. Want to extract it as a 2D nifty image.

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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: [July 19, 2019, 3:42am UTC](https://discourse.slicer.org/t/extraction-of-2d-image-from-3d-volume/7674/4 "2019-07-19T03:42:42Z")

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Probably the easiest way is to use the Scissors effect (with Fill inside, Rectangle, Symmetric options), find the slice, and click-and-drag the area you want to extract (can be the full slice, you can also mark multiple slices or regions, each with a separate color). This generates single-slice segment(s) that you can export to single-slice volume(s) using Split volume effect (with Pad voxels=0 option). You can save the exported volumes to nifti file.

You need to install SegmentEditorExtraEffects extension to obtain Split volume effect.