SAGA-GIS Tool Library Documentation (v7.8.2)

Tool Edge Detection (ViGrA)

Edge detection.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputInputGrid, inputINPUT--
OutputEdgesGrid, outputOUTPUT--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Detector typeChoiceTYPE-Available Choices:
[0] Canny
[1] Shen-Castan
Default: 0
Operator scaleFloating pointSCALE-Minimum: 0.000000
Default: 1.000000
Gradient thresholdFloating pointTHRESHOLD-Minimum: 0.000000
Default: 1.000000

Command-line

Usage: saga_cmd imagery_vigra 1 [-INPUT <str>] [-OUTPUT <str>] [-TYPE <str>] [-SCALE <double>] [-THRESHOLD <double>]
  -INPUT:<str>       	Input
	Grid, input
  -OUTPUT:<str>      	Edges
	Grid, output
  -TYPE:<str>        	Detector type
	Choice
	Available Choices:
	[0] Canny
	[1] Shen-Castan
	Default: 0
  -SCALE:<double>    	Operator scale
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -THRESHOLD:<double>	Gradient threshold
	Floating point
	Minimum: 0.000000
	Default: 1.000000