Tool Name	Gaussian Filter
Tool ID	1
Library ID	grid_filter
Version	1.0
Author(s)	O.Conrad (c) 2008

Description

The Gaussian filter is a low-pass filter operator that is used to 'blur' or 'soften' data and to remove detail and noise.
The degree of smoothing is determined by the kernel size specified as radius and the weighting of each raster cell within the kernel. The weighting scheme uses the Gaussian bell curve function and can be adjusted to the kernel size with the 'Standard Deviation' option.

Parameters

Name	Type	Identifier	Description	Constraints
Input
Grid	grid, input	INPUT
Output
Filtered Grid	grid, output, optional	RESULT
Options
Kernel Radius	integer number	KERNEL_RADIUS		Minimum: 1 Default: 2
Standard Deviation	floating point number	SIGMA	The standard deviation as percentage of the kernel radius.	Minimum: 1.000000 Default: 30.000000