# Problems with a fragments bone

**URL:** <https://discourse.slicer.org/t/problems-with-a-fragments-bone/2376>\
**Category:** Support\
**Tags:** segmentation, 3d-model\
**Created:** [March 20, 2018, 1:32pm UTC](https://discourse.slicer.org/t/problems-with-a-fragments-bone/2376 "2018-03-20T13:32:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Patrycja\_Grygny](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/patrycja_grygny/32/3537_2.png) [@Patrycja\_Grygny](https://discourse.slicer.org/u/Patrycja_Grygny)\
**Post date:** [March 20, 2018, 1:32pm UTC](https://discourse.slicer.org/t/problems-with-a-fragments-bone/2376/1 "2018-03-20T13:32:40Z")

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Operating system: MacOS  
Slicer version: 4.8.1  
Expected behavior:  
Actual behavior:  
Hi,  
I have a cremation material which is located in the Popiel during the Pomeranian culture period. Itry to crop a fragments and do 3D. The program doesn’t see a single bones. Ceramics ashtray treats as bones. In small fragments he doesn’t read at all.  
How can I deal with it? Anyone have an idea?  
Please help.

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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:** [March 20, 2018, 4:02pm UTC](https://discourse.slicer.org/t/problems-with-a-fragments-bone/2376/2 "2018-03-20T16:02:40Z")

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You can adjust brightness/contrast of the image by holding down the mouse left button and dragging it on the image up/down and left/right.

For volume visualization, go to Volume rendering module, select a volume rendering preset, and adjust the “Shift” slider.

For high-quality 3D visualization you may need to segment your volume using Segment Editor. See tutorials here: [https://www.slicer.org/wiki/Documentation/Nightly/Training#Slicer4\_Image\_Segmentation](https://www.slicer.org/wiki/Documentation/Nightly/Training#Slicer4_Image_Segmentation).