The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. hese false color images may reveal subtle variations of the surface not easily identified in a single band image. This image from NASA 2001 Mars Odyssey spacecraft shows part of of Hebes Chasma.
Orbit Number: 14057 Latitude: -0.381134 Longitude: 283.166 Instrument: VIS Captured: 2005-02-13 20:13
http://photojournal.jpl.nasa.gov/catalog/PIA20084