# Mean st deviation... segment statistics

**URL:** <https://discourse.slicer.org/t/mean-st-deviation-segment-statistics/4451>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [October 18, 2018, 11:05am UTC](https://discourse.slicer.org/t/mean-st-deviation-segment-statistics/4451 "2018-10-18T11:05:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ash\_Alarfaj](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ash_alarfaj/32/3327_2.png) [@Ash\_Alarfaj](https://discourse.slicer.org/u/Ash_Alarfaj)\
**Post date:** [October 18, 2018, 11:05am UTC](https://discourse.slicer.org/t/mean-st-deviation-segment-statistics/4451/1 "2018-10-18T11:05:39Z")

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Hi wonderful 3D slicer team  
mac, 3D slicer 4.8

can you explain why there are mean.max.min.st deviation for my segmentation. I’ve cropped the image then use threshold then segment. statistics. it is for one region and one area of interest.

 ![12](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/1/212d61bf269710436002b5353321a9fe252928dc.png)