# converting model to binary label map creates artifacts 

**URL:** <https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879>\
**Category:** Support\
**Created:** [June 6, 2023, 11:00pm UTC](https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879 "2023-06-06T23:00:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![NahomKidane](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nahomkidane/32/14849_2.png) [@NahomKidane](https://discourse.slicer.org/u/NahomKidane)\
**Post date:** [June 6, 2023, 11:00pm UTC](https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879/1 "2023-06-06T23:00:08Z")

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Hello,

I am trying to use the convert model to segmentation node but I get artifacts. Any idea on how to correct this issue?  
Thank you!  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/6/e6ae630d636dab5a722fdd8e8a47c1805a0a09db.png)

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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:** [June 6, 2023, 11:04pm UTC](https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879/2 "2023-06-06T23:04:12Z")

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Was the input model a closed surface?

There have been several projects using Slicer for orbital bone segmentation. You can find more information by [searching on this forum](https://discourse.slicer.org/search?expanded=true&q=orbital%20bone). What is the approach that you are trying to implement?

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<div class="post-metadata">

**Author:** ![NahomKidane](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nahomkidane/32/14849_2.png) [@NahomKidane](https://discourse.slicer.org/u/NahomKidane)\
**Post date:** [June 7, 2023, 12:30pm UTC](https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879/3 "2023-06-07T12:30:21Z")

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Thank you @lassoan . Yes, the input was a closed surface of the orbital. I am trying to use the wrap solidify tool to create a closed surface after patching a fractured area with small patch surface. Hence combine two segmentations into one and then run the wrap tool to create a smooth surface.

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/b/2bc66918dd453ffea9433fe97d53d4d635c1575f.png)

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<div class="post-metadata">

**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:** [June 7, 2023, 1:03pm UTC](https://discourse.slicer.org/t/converting-model-to-binary-label-map-creates-artifacts/29879/4 "2023-06-07T13:03:41Z")

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You may be able to reconstruct the entire eye socket with wrap solidify effect, but if that is too hard then adding a patch manually could make sense. A segmentation’s binary labelmap representation may not be able to represent arbitrarily thin surface, so may you need to either make the surface thicker or [change the segmentation to have smaller voxel size](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmenteditor.html#segmentation-is-not-accurate-enough).