Wow, interesting topic. I'm no spectral analysis specialist, more an artist than scientist, though we've got members who are more scientist than I.
But, if someone can tackle this, the idea of different spectral views would be an interesting experiment in a VT app like MapTool. Creating maps perceived in the view of the eyes of an Orc or Elf, hmmm.
It might be worth attempting a map in the spectrum to an orc.
Have some REP for bringing up an intriguing topic. Besides, I know you are a well known member of the CBG, so you deserve some REP anyway!