Tool Gaussian Filter
The Gaussian filter is a smoothing operator that is used to 'blur' or 'soften' data and to remove detail and noise. The degree of smoothing is determined by the standard deviation. For higher standard deviations you need to use a larger search radius.
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Grid | Grid, input | INPUT | - | - |
Output | Filtered Grid (*) | Grid, output, optional | RESULT | - | - |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
Standard Deviation | Floating point | SIGMA | The standard deviation as percentage of the kernel radius, determines the degree of smoothing. | Minimum: 0.000100 Default: 50.000000 |
Kernel Type | Choice | KERNEL_TYPE | The kernel's shape. | Available Choices: [0] Square [1] Circle Default: 1 |
Radius | Integer | KERNEL_RADIUS | cells | Minimum: 0 Default: 2 |
(*) optional |
Command-line
Usage: saga_cmd grid_filter 1 [-INPUT <str>] [-RESULT <str>] [-SIGMA <double>] [-KERNEL_TYPE <str>] [-KERNEL_RADIUS <num>]
-INPUT:<str> Grid
Grid, input
-RESULT:<str> Filtered Grid
Grid, output, optional
-SIGMA:<double> Standard Deviation
Floating point
Minimum: 0.000100
Default: 50.000000
-KERNEL_TYPE:<str> Kernel Type
Choice
Available Choices:
[0] Square
[1] Circle
Default: 1
-KERNEL_RADIUS:<num> Radius
Integer
Minimum: 0
Default: 2