# Elastix general registration

**URL:** https://discourse.slicer.org/t/elastix-general-registration/7888
**Category:** Support
**Tags:** registration
**Created:** [August 6, 2019, 2:22am UTC](https://discourse.slicer.org/t/elastix-general-registration/7888 "2019-08-06T02:22:46Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Melanie](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Melanie](https://discourse.slicer.org/u/Melanie)
#### Post date: [August 6, 2019, 2:22am UTC](https://discourse.slicer.org/t/elastix-general-registration/7888/1 "2019-08-06T02:22:46Z")

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Hi

In elastix general registration mask volume option doesn’t allow me to select anything. It jus give the option none.

I created a mask beforehand and then selected my fixed and moving volumes,

Can someone help please

Thanks

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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: [August 6, 2019, 3:07am UTC](https://discourse.slicer.org/t/elastix-general-registration/7888/2 "2019-08-06T03:07:45Z")

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Do you have labelmap volumes in the scene?

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### Author: ![Melanie](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Melanie](https://discourse.slicer.org/u/Melanie)
#### Post date: [August 6, 2019, 3:29am UTC](https://discourse.slicer.org/t/elastix-general-registration/7888/3 "2019-08-06T03:29:27Z")

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Yes I do. I tried creating the mask with segment editor and then reading the clip with model module I did that also. So I had many label maps created but they don’t show up in the drop down. ( they do show up in data module)

Thanks a lot

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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: [August 6, 2019, 3:57am UTC](https://discourse.slicer.org/t/elastix-general-registration/7888/4 "2019-08-06T03:57:25Z")

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Have you chosen “Fill inside and outside” option and “(Create new labelmap volume)”  
output volume before clicking “Apply”? If you choose the mask volume in Volumes module, what is the value of “Volume type” in “Volume information” section?

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### Author: ![Melanie](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Melanie](https://discourse.slicer.org/u/Melanie)
#### Post date: [August 7, 2019, 5:38pm UTC](https://discourse.slicer.org/t/elastix-general-registration/7888/5 "2019-08-07T17:38:39Z")

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Thank you ever so much @lassoan.  
I had made the mask with clip volume with model; module. It did not work.

But when I did with segment editor it works.

Thanks a lot