# Fiber count limitation

**URL:** <https://discourse.slicer.org/t/fiber-count-limitation/2296>\
**Category:** SlicerDMRI\
**Created:** [March 12, 2018, 12:58pm UTC](https://discourse.slicer.org/t/fiber-count-limitation/2296 "2018-03-12T12:58:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Heiko\_Stark](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/heiko_stark/32/69446_2.png) [@Heiko\_Stark](https://discourse.slicer.org/u/Heiko_Stark)\
**Post date:** [March 12, 2018, 12:58pm UTC](https://discourse.slicer.org/t/fiber-count-limitation/2296/1 "2018-03-12T12:58:40Z")

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Is there a way to limit the number of fibres tracked from a labelmap?  
Random seed points are also available.

Best regards,  
Heiko

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [March 19, 2018, 4:19pm UTC](https://discourse.slicer.org/t/fiber-count-limitation/2296/2 "2018-03-19T16:19:16Z")

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The only way to restrict the result bundle during seeding is to make the seeding criteria more stringent (e.g. stopping values). After seeding, you can sub-sample a (randomly selected) percentage in the Tractography Display module, or use a selection ROI – and then export to a new bundle, if needed.