PostGIS

ST_PixelAsPoint
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ST_PixelAsPoint

12.6. Raster Pixel Accessors and Setters

Name

ST_PixelAsPoint — Returns a point geometry of the pixel’s upper-left corner.

+geometry +ST_PixelAsPoint(+`raster `+rast, integer columnx, integer rowy`)`;

Returns a point geometry of the pixel’s upper-left corner.

Availability: 2.1.0

SELECT ST_AsText(ST_PixelAsPoint(rast, 1, 1)) FROM dummy_rast WHERE rid = 1;

   st_astext
----------------
 POINT(0.5 0.5)