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I am looking for something like Geoserver or gdal2tiles.py that can render tiles to 16 bit PNG files (grey-scale). The tech needs to be open source. The geoserver PNG grey-scale output is not 16 bit but an 8-bit two band image which is no good for my use-case (I need a single-band 16-bit image). gdal2tiles also produces 8-bits. I thought of using Mapnik as a renderer and then tilestache or some combination like that, but Mapnik offers only 8 or 32 bit PNGs and no 16 bits according to the documentation.

I want to tile according to a well-known grid and have 16-bit single-band tiles served over well-known web protocols (tms, wms). Any suggestions?

EDIT:
Although my inputs are also 16-bit they do not conform to a suitable tiling scheme and are in EPSG 4326 when I want them in 3857, so I have to retile and reproject and can't just use the original files. So I am looking for the convenience of a renderer that will produce 16-bit tiles conforming to tms or wms, with caching

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    16-bit raster input, or are you creating this from some vector source? – BradHards Jan 16 '17 at 9:37
  • The inputs are also 16-bit rasters (for now), but the important thing is 16-bit output. – MappaGnosis Jan 16 '17 at 9:58
  • Tile servers are typically made for on-screen usage and they serve 8-bytes-per-band tiles either as png or jpeg. Gdal2tiles is a python script trac.osgeo.org/gdal/browser/trunk/gdal/swig/python/scripts/… and it might not be too hard to edit it to support a new outputformat for tiles. For MapServer it is rather easy to configure 16-bit TIFF outputformat and with not-so-often used tile mode mapserver.org/output/tile_mode.html you might get something usable. – user30184 Jan 16 '17 at 12:06

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