ABSTRACT
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 importance as state-of-the-art digital cinema projectors are capable of reproducing gamuts surpassing even the capabilities of film.
