I have a set of large geotiff (DEM + orthoimagery) that I need to generate image pyramids from. So far
gdal_retile from osgeo4w is working very well for my use case with one exception: I need all my tiles to be of uniform pixel size (eg: 1025x1025).
gdal_retile will, as its default behavior, produce smaller tiles at the edges if the original file's pixel dimensions are not a multiple of the tile size.
Alternatively, is there a gdal command that will let me pad the DEM and orthoimagery with 'empty' / 'transparent' data out to an even multiple of my tile size)?