SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Grid Skeletonization

Simple skeletonisation methods for grids.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputGridGrid, inputINPUT--
OutputSkeletonGrid, outputRESULT--
Skeleton (*)Shapes, output, optionalVECTOR--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Show Progress in MapBoolean, GUISHOW_MAP-Default: 0
MethodChoiceMETHOD-Available Choices:
[0] Standard
[1] Hilditch's Algorithm
[2] Channel Skeleton
Default: 0
InitialisationChoiceINIT_METHODInitialize a grid cell as potential skeleton member based on given threshold.Available Choices:
[0] less than
[1] greater than
[2] less than or equal
[3] greater than or equal
Default: 1
ThresholdFloating pointINIT_THRESHOLD-Default: 0.000000
ConvergenceIntegerCONVERGENCE-Minimum: 0
Default: 3
(*) optional

Command-line

Usage: saga_cmd imagery_segmentation 1 [-INPUT <str>] [-RESULT <str>] [-VECTOR <str>] [-METHOD <str>] [-INIT_METHOD <str>] [-INIT_THRESHOLD <double>] [-CONVERGENCE <num>]
  -INPUT:<str>            	Grid
	Grid, input
  -RESULT:<str>           	Skeleton
	Grid, output
  -VECTOR:<str>           	Skeleton
	Shapes, output, optional
  -METHOD:<str>           	Method
	Choice
	Available Choices:
	[0] Standard
	[1] Hilditch's Algorithm
	[2] Channel Skeleton
	Default: 0
  -INIT_METHOD:<str>      	Initialisation
	Choice
	Available Choices:
	[0] less than
	[1] greater than
	[2] less than or equal
	[3] greater than or equal
	Default: 1
  -INIT_THRESHOLD:<double>	Threshold
	Floating point
	Default: 0.000000
  -CONVERGENCE:<num>      	Convergence
	Integer
	Minimum: 0
	Default: 3