ST_Neighborhood(rast, 1, -9, 3, 3, 3, FALSE)
FROM raster_neighborhood;
+SELECT
+ ST_Neighborhood(rast, 1, 4, 4, 1, 1)
+FROM raster_neighborhood;
+SELECT
+ ST_Neighborhood(rast, 1, 4, 4, 1, 2)
+FROM raster_neighborhood;
+
DROP TABLE IF EXISTS raster_neighborhood;
NOTICE: Pixel has no neighbors for band at distance 1 x 1
NOTICE: Pixel has no neighbors for band at distance 3 x 3
{{0,0,0,0,0,0,0},{0,0,0,0,0,0,0},{0,0,0,0,0,0,0},{0,0,0,0,0,0,0},{0,0,0,0,0,0,0},{0,0,0,0,0,0,0},{0,0,0,0,0,0,0}}
+{{1,1,NULL},{1,1,1},{NULL,1,1}}
+{{1,1,1,NULL,1},{1,1,1,1,1},{1,NULL,1,1,1}}