Name
ST_TRI — Returns a raster with the calculated Terrain Ruggedness Index.
Synopsis
raster ST_TRI(
raster rast, integer nband, raster customextent, text pixeltype="32BF" , boolean interpolate_nodata=FALSE )
;
Description
Terrain Ruggedness Index is calculated by comparing a central pixel with its neighbors, taking the absolute values of the differences, and averaging the result.
| |
---|
This function only supports a focalmean radius of one. |
Availability: 2.1.0
Examples
-- needs examples