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jvs:fscan:manual:chapter2:expression:dilate [2012/04/22 16:22]
voyvodic 		jvs:fscan:manual:chapter2:expression:dilate [2015/02/06 17:30]
voyvodic
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 **fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Dilate** **fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Dilate**
-===== Dilate -- Dilate the edges of an intensity region in a 3D image volume ==========+===== Dilate -- Expand an intensity region in a 3D image volume =====
  **usage:  -expr dilate val maskbits newval flag nmatch nneighbors**\\  **usage:  -expr dilate val maskbits newval flag nmatch nneighbors**\\
  
-If MASKBITS is non-zero, it is used to mask both the input data values and NEWVAL; only those data bits are considered during comparisons and only the NEWVAL bits are changed during dilation.+  * VAL - "Inside" value (or Percent value if (FLAG & (4|8)) 
 +  * MASKBITS - voxel data values to consider for comparing with VAL (DATABITS is inverse of MASKBITS) 
 +  * NEWVAL - bit-value to turn on when adding (dilating) a voxel\\ 
 +    * If NEWVAL is negative and MASKBITS is zero, then the input data voxel value will be used when dilating into neighboring voxels.
  
-If NEWVAL is negative and MASKBITS is zero, then the input data voxel value will be used when dilating into neighboring voxels.+  * FLAG: 
 +    * 0 - (default) 
 +    * 1 -  
 +    * 2 - Erode/dilate in 2-D plane only 
 +    * 4 - Stop on dark edge (voxel darker than (100-VAL)% of inside neighbors (Needs MASKBITS set) 
 +    * 8 - Stop on bright edge (brighter than (100+VAL)% of inside neighbors 
 +    * 16 - Dilate all non-zero values except VAL (useful for filling in around VAL areas) 
 +  * NMATCH - number of adjacent voxels matching criterion needed for dilation (default=1) 
 +  * NNEIGHBORS - number of neighboring voxels to consider (default=26 if 3D, 8 if 2D) 
 + 
 +If MASKBITS is non-zero, it is used to mask both the input data values and NEWVAL; only those data bits are considered during comparisons and only the NEWVAL bits are changed during dilation.
  
 **See Also:**\\ **See Also:**\\
 [[jvs:fscan:manual:chapter2:expression:erode|ERODE]], [[jvs:fscan:manual:chapter2:expression:erode|ERODE]],
-[[jvs:fscan:manual:chapter2:expression:flood|FLOOD],+[[jvs:fscan:manual:chapter2:expression:flood|FLOOD]],
  
 [[jvs:fscan|fScan Home]],  [[jvs:fscan|fScan Home]], 
jvs/fscan/manual/chapter2/expression/dilate.txt · Last modified: 2023/02/23 18:43 (external edit)

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