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jvs:fscan:manual:chapter2:expression:segment [2015/01/30 19:57]
voyvodic
jvs:fscan:manual:chapter2:expression:segment [2021/01/25 19:45] (current)
voyvodic
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 **fScan Reference Manual, Chapter 2 (CmdLineOptions:​Expr):​ segment** **fScan Reference Manual, Chapter 2 (CmdLineOptions:​Expr):​ segment**
-===== segment -- ===== +===== segment -- Assign contiguous voxels with similar values to different clusters ​===== 
- ​**usage: ​ -expr segment [value ​flag-- cluster contiguous non-zero voxels into different ROIs **\\+ ​**usage: ​ -expr segment [flag value]**\\
  
-The SEGMENT command process a 3-D image map looking for voxel values greater than VALUE. ​ Each time it finds such a voxel it uses a variation of the [[jvs:​fscan:​manual:​chapter2:​expression:​flood|flood]] function to find all other voxels greater than VALUE contiguous with the first, and assigns all those values a new "​cluster"​ number. ​ Cluster values start at 1, and increase by 1 for each new cluster found.+The SEGMENT command process a 3-D image map looking for voxel values greater than or equal to VALUE. ​ Each time it finds such a voxel it uses a variation of the [[jvs:​fscan:​manual:​chapter2:​expression:​flood|flood]] function to find all other voxels greater than VALUE contiguous with the first, and assigns all those values a new "​cluster"​ number.  ​Clusters can have as few as 1 voxel. ​Cluster values start at 1, and increase by 1 for each new cluster found.
  
-VALUE: default is 0+VALUE: default is 1
  
 FLAG:\\ FLAG:\\
- 0 - default + 0 - default\\ 
- 1 - look for negative voxel values, less than -VALUE+ 1 - also look for negative voxel values, less than or equal to -VALUE ​(default is just positive)
    
 **See Also:**\\ **See Also:**\\
jvs/fscan/manual/chapter2/expression/segment.1422647865.txt.gz · Last modified: 2015/01/30 19:57 by voyvodic