Tool Watershed Segmentation (ViGrA)

Note that the watershed algorithm usually results in an oversegmentation (i.e., too many regions), but its boundary localization is quite good.
Based on the code example "watershed.cxx" by Ullrich Koethe.

References

ViGrA - Vision with Generic Algorithms

Author: O.Conrad (c) 2009
Menu: Imagery|Segmentation

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Input	Grid, input	`INPUT`	-	-
Output	Segmentation	Grid, output	`OUTPUT`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Width of gradient filter	Floating point	`SCALE`	-	Minimum: 0.000000 Default: 1.000000
	RGB coded data	Boolean	`RGB`	-	Default: 0
	Edges	Boolean	`EDGES`	-	Default: 0

Command-line

Usage: saga_cmd imagery_vigra 4 [-INPUT <str>] [-OUTPUT <str>] [-SCALE <double>] [-RGB <str>] [-EDGES <str>]
  -INPUT:<str>   	Input
	Grid, input
  -OUTPUT:<str>  	Segmentation
	Grid, output
  -SCALE:<double>	Width of gradient filter
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -RGB:<str>     	RGB coded data
	Boolean
	Default: 0
  -EDGES:<str>   	Edges
	Boolean
	Default: 0