tilelive-raster
I am a tilelive source for simple rasters, both local and remote.
Usage
This is intended for RGB(A) multiband rasters. It uses Mapnik (via tilelive-mapnik) and GDAL (via node-gdal) under the hood to inspect rasters and render them, so it should work with any format that GDAL supports (and has been compiled with support for).
// fetch a remote raster (it will be cached in $TMPDIR and cleaned up when the
// process exits)
tilelive.load("raster+http://example.com/whatever.tif", ...);
// generate tiles from a local raster
tilelive.load("raster+file://./whatever.tif", ...);