Demo displays three images exported by my Python export plugin for GIMP. If any one is interested in the plugin let me know and I will gladly share it with you.
The color palette is an approximation of LowRes Coders 16 color palette but yields good results.
I was a bit lazy. The exporter writes individual pixels at present. Will mod to pack two pixels per data value if anyone prefers that format.
Get LowRes Coder to use this program.