
Chapter 10
Transforming the color gamut
10.1 Introduction
The color gamut of a device is the set of colors that this device is able
to reproduce. Theatrical projection systems have color gamuts that are quite
different from those of LCD screens, for instance, so before a movie is released
it has to be processed so that its colors are tailored to the generic capabilities of
each of the different display systems in which the movie is going to be shown.
This process is called gamut mapping, and while it usually implies gamut
compression, because the movie gamut is normally quite wider than that of
common displays, the problem of gamut expansion is gaining ...