25th September 2005, 8:32 PM
In this case, with the image in visible light? Yeah. A lot of the time though, they take pictures in other wavelengths and pretty much any color they use from that point is arbitrary.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)