SAGA-GIS Module Library Documentation (v2.1.3)

Module Gaussian Filter

The Gauss Filter is a smoothing operator that is used to `blur' or 'soften' Grid Data
and remove detail and noise.
The degree of smoothing is determined by the standard deviation.
For higher standard deviations you need a greater Radius

Parameters

 NameTypeIdentifierDescriptionConstraints
InputGridGrid (input)INPUT--
OutputFiltered Grid (*)Grid (optional output)RESULT--
OptionsStandard DeviationFloating pointSIGMA-Minimum: 0.000100
Default: 1.000000
Search ModeChoiceMODE-Available Choices:
[0] Square
[1] Circle
Default: 1
Search RadiusIntegerRADIUS-Minimum: 1
Default: 2
(*) optional

Command-line

Usage: saga_cmd grid_filter 1 -INPUT <str> [-RESULT <str>] [-SIGMA <str>] [-MODE <str>] [-RADIUS <num>]
  -INPUT:<str> 	Grid
	Grid (input)
  -RESULT:<str>	Filtered Grid
	Grid (optional output)
  -SIGMA:<str> 	Standard Deviation
	Floating point
	Minimum: 0.000100
	Default: 1.000000
  -MODE:<str>  	Search Mode
	Choice
	Available Choices:
	[0] Square
	[1] Circle
	Default: 1
  -RADIUS:<num>	Search Radius
	Integer
	Minimum: 1
	Default: 2