The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. This image from NASA 2001 Mars Odyssey spacecraft shows part of the plains in Arabia Terra.
Orbit Number: 39336 Latitude: 5.66281 Longitude: 358.159 Instrument: VIS Captured: 2010-10-27 06:39
http://photojournal.jpl.nasa.gov/catalog/PIA20770