ST_CellDepth
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Returns the pixel depth, in bits, of a raster object.
Syntax
integer ST_CellDepth(raster raster_obj);Parameters
| Parameter | Description |
|---|---|
| raster_obj | The raster object. |
Return values
An integer representing the pixel depth in bits. Valid values:
| Return value | Description |
|---|---|
0 | Unknown pixel depth. |
1 | 1-bit pixel depth. |
2 | 2-bit pixel depth. |
4 | 4-bit pixel depth. |
8 | 8-bit pixel depth. |
16 | 16-bit pixel depth. |
32 | 32-bit pixel depth. |
64 | 64-bit pixel depth. |
Examples
Query the pixel depth of a raster object:
SELECT ST_CellDepth(raster_obj) FROM raster_table;Expected output:
8The output 8 indicates an 8-bit pixel depth.
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