# Trouble with thresholding

**URL:** <https://discourse.slicer.org/t/trouble-with-thresholding/21332>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [January 4, 2022, 10:43pm UTC](https://discourse.slicer.org/t/trouble-with-thresholding/21332 "2022-01-04T22:43:52Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![DIV](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/div/32/12816_2.png) [@DIV](https://discourse.slicer.org/u/DIV)\
**Post date:** [January 18, 2022, 12:32pm UTC](https://discourse.slicer.org/t/trouble-with-thresholding/21332/6 "2022-01-18T12:32:25Z")

</div>

There’re some minor artefacts creating dull and bright streaks in the background.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/e/feb083b068f23470cc867f4a0c2e45c3d1b39ae5.jpeg)

Slices viewed with `Manual Min/Max` set to `10300` and `14100`.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/8/0848a1017c5f076e612dee655d2f9de1bb94a249.png)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/8/78039e4e06cf4d879825bc5d9f87b5c92f97de0e.jpeg)  
Note: displaying or hiding the ROI can change the 3D rendering, per [Volume rendering appearance changes if ROI box is shown](https://discourse.slicer.org/t/volume-rendering-appearance-changes-if-roi-box-is-shown/20575) .

---

_[View the full topic](https://discourse.slicer.org/t/trouble-with-thresholding/21332)._