# Joint Smoothing for only Selected segments

**URL:** <https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714>\
**Category:** Support\
**Created:** [April 2, 2023, 8:44am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714 "2023-04-02T08:44:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![KSL](https://avatars.discourse-cdn.com/v4/letter/k/82dd89/32.png) [@KSL](https://discourse.slicer.org/u/KSL)\
**Post date:** [April 2, 2023, 8:44am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714/1 "2023-04-02T08:44:34Z")

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Hello dear friends,  
Is it possible to conduct “Joint smoothing” for only “selected segments” e.g. spleen only, from the Total Segmentator module?

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**Author:** ![rbumm](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/rbumm/32/9404_2.png) [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Post date:** [April 3, 2023, 12:15am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714/2 "2023-04-03T00:15:57Z")

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Yes, you could make the ones invisibly that you do not have to smooth. Only visible segments undergo the process.

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**Author:** ![KSL](https://avatars.discourse-cdn.com/v4/letter/k/82dd89/32.png) [@KSL](https://discourse.slicer.org/u/KSL)\
**Post date:** [April 3, 2023, 9:25am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714/3 "2023-04-03T09:25:47Z")

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Sir, I feel that the amount of time it takes to “Joint smooth” the whole segments and the “only visible segments” is not significantly different. Could it be because I am running the module in CPU mode? Thank you.

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**Author:** ![rbumm](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/rbumm/32/9404_2.png) [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Post date:** [April 3, 2023, 9:34am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714/4 "2023-04-03T09:34:11Z")

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In my test just now with Slicer 5.2.2 smoothing 3 visible segments only takes less time than all 15 segments.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/6/66ef1d8308a085bbc74beeb5644c94c954880c97.png)

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**Author:** ![KSL](https://avatars.discourse-cdn.com/v4/letter/k/82dd89/32.png) [@KSL](https://discourse.slicer.org/u/KSL)\
**Post date:** [April 3, 2023, 9:53am UTC](https://discourse.slicer.org/t/joint-smoothing-for-only-selected-segments/28714/5 "2023-04-03T09:53:53Z")

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Sir, I tried rerunning the joint smoothing, which took less time. My mistake was that I did not check the “Apply to visible segments” box. Thank you very much, Sir.