# Segmentation smoothing brush

**URL:** <https://discourse.slicer.org/t/segmentation-smoothing-brush/14724>\
**Category:** Support\
**Created:** [November 21, 2020, 1:42pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724 "2020-11-21T13:42:40Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Hannnonk](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@Hannnonk](https://discourse.slicer.org/u/Hannnonk)\
**Post date:** [November 21, 2020, 1:42pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/1 "2020-11-21T13:42:40Z")

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Could someone point me in the direction of how to obtain the segmentation smoothing brush?  
It says it is in the Slicer Preview Releases (Slicer-4.13)…but for the life of me I can not find this. Do I have to download a newer version of Slicer?  
BTW great work people…this program is amazing !!  
thanks  
KH

Operating system:  
Slicer version:  
Expected behavior:  
Actual behavior:

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**Author:** ![manjula](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manjula/32/80981_2.png) [@manjula](https://discourse.slicer.org/u/manjula)\
**Post date:** [November 21, 2020, 3:05pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/2 "2020-11-21T15:05:29Z")

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You can follow the tutorial here. It is under the segment editor - smoothing - median

and collapsable option with smooth brush options. You must enable edit in 3D view for it to work.

[![](https://img.youtube.com/vi/rjNcvefBaNU/maxresdefault.jpg "Segmentation smoothing brush - new segmentation tool in 3D Slicer") ](https://www.youtube.com/watch?v=rjNcvefBaNU)

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**Author:** ![Hannnonk](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@Hannnonk](https://discourse.slicer.org/u/Hannnonk)\
**Post date:** [November 21, 2020, 3:47pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/3 "2020-11-21T15:47:25Z")

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Thanks but I do not have that option under segment editor on my Slicer which is 4.10.2  
Do I have to download that tool?  
thanks  
KH

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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:** [November 21, 2020, 4:19pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/4 "2020-11-21T16:19:57Z")

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> [@manjula](#):
>
> You must enable edit in 3D view for it to work.

Note that it works in slice views, too, and it is automatically enabled there.

> [@Hannnonk](#):
>
> Slicer which is 4.10.2

Local smoothing is available in most recent Slicer-4.13 versions only.

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**Author:** ![Hamid](https://avatars.discourse-cdn.com/v4/letter/h/5fc32e/32.png) [@Hamid](https://discourse.slicer.org/u/Hamid)\
**Post date:** [April 27, 2021, 8:47pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/5 "2021-04-27T20:47:26Z")

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I have the same problem with slicer 4.11.2020! The smoothing brush option does not show up for me as well. I appreciate any help.

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [April 27, 2021, 8:48pm UTC](https://discourse.slicer.org/t/segmentation-smoothing-brush/14724/6 "2021-04-27T20:48:57Z")

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As Andas said earlier:

> [@lassoan](#):
>
> Local smoothing is available in most recent Slicer-4.13 versions only.