Resampling Filter
- Author: O.Conrad (c) 2012
- Menu: Grid | Filter
Description
Resampling filter for grids. Resamples in a first step the given grid to desired resampling cell size, expressed as multiple of the original cell size (scale factor). This is an up-scaling through which cell values are aggregated as cell area weighted means. Second step is the down-scaling to original cell size using spline interpolation. Specially for larger search distances this is a comparably fast alternative for simple low and high pass filter operations.
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Grid | grid, input | GRID | - | - |
| Output | Low Pass Filter | grid, output | LOPASS | - | - |
| High Pass Filter | grid, output | HIPASS | - | - |
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Scale Factor | floating point number | SCALE | - | Minimum: 1.000000
Default: 10.000000 |
Command Line
Usage: saga_cmd grid_filter 11 [-GRID ] [-LOPASS ] [-HIPASS ] [-SCALE ]
-GRID: Grid
grid, input
-LOPASS: Low Pass Filter
grid, output
-HIPASS: High Pass Filter
grid, output
-SCALE: Scale Factor
floating point number
Minimum: 1.000000
Default: 10.000000