Name
raster — raster spatial data type.
Description
raster is a spatial data type used to represent raster data such as those imported from JPEGs, TIFFs, PNGs, digital elevation models. Each raster has 1 or more bands each having a set of pixel values. Rasters can be georeferenced.
![[Note]](../images/note.png)
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Requires PostGIS be compiled with GDAL support. Currently rasters can be implicitly converted to geometry type, but the conversion returns the ST_ConvexHull of the raster. This auto casting may be removed in the near future so don't rely on it. |
Casting Behavior
This section lists the automatic as well as explicit casts allowed for this data type
| Cast To | Behavior |
| geometry | automatic |