# Threshold Methods
**URL:** https://discourse.slicer.org/t/threshold-methods/9035
**Category:** Support
**Created:** [November 5, 2019, 7:51pm UTC](https://discourse.slicer.org/t/threshold-methods/9035 "2019-11-05T19:51:14Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@marie](https://discourse.slicer.org/u/marie)
#### Post date: [November 5, 2019, 7:51pm UTC](https://discourse.slicer.org/t/threshold-methods/9035/1 "2019-11-05T19:51:14Z")
Hey there!
I am writing my bachelor’s thesis about the topic of segmentation and 3D printing of cerebral arteries (using 3D slicer), what is why i need to know how the different threshold methods are working. I know the Otsu’s method, but i haven’t heard about the rest and there isn’t much information in the documentation.
Where can i get more information? Is there an easier way than viewing the source code?
Thanks for helping!
marie
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [November 5, 2019, 7:53pm UTC](https://discourse.slicer.org/t/threshold-methods/9035/2 "2019-11-05T19:53:26Z")
Slicer uses algorithms implemented in ITK. See detailed description in this paper: [http://hdl.handle.net/10380/3279](http://hdl.handle.net/10380/3279)
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### Author:  [@marie](https://discourse.slicer.org/u/marie)
#### Post date: [November 5, 2019, 8:00pm UTC](https://discourse.slicer.org/t/threshold-methods/9035/3 "2019-11-05T20:00:34Z")
Thanks, that’s helpful!