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

Author: Copyrights (c) 2003 by Andre Ringeler
Menu: Grid|Filter
WIKI: http://sourceforge.net/apps/trac/saga-gis/wiki/grid_filter_1

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Grid	Grid (input)	`INPUT`	-	-
Output	Filtered Grid (*)	Grid (optional output)	`RESULT`	-	-
Options	Grid system	Grid system	`PARAMETERS_GRID_SYSTEM`	Grid system	-
	Standard Deviation	Floating point	`SIGMA`	-	Minimum: 0.000100 Default: 1.000000
	Search Mode	Choice	`MODE`	-	Available Choices: [0] Square [1] Circle Default: 1
	Search Radius	Integer	`RADIUS`	-	Minimum: 1 Default: 2
(*) optional

Command-line

Usage: saga_cmd grid_filter 1 [-INPUT <str>] [-RESULT <str>] [-SIGMA <double>] [-MODE <str>] [-RADIUS <num>]
  -INPUT:<str>   	Grid
	Grid (input)
  -RESULT:<str>  	Filtered Grid
	Grid (optional output)
  -SIGMA:<double>	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