Apple Aperture Manual do Utilizador descarregar pdf (Página 424)

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424 Part IV Appendixes and Glossary

What Is a Device’s Gamut?

The range of colors an individual color device is capable of reproducing is known as its

gamut. Because of the differences in gamuts between devices, such as a displays and

printers, these devices are incapable of exactly reproducing the same range of colors. In

fact, two displays of the same model made by the same manufacturer have distinct

gamuts. Types of ink and paper stock can also affect a printer’s gamut. Likewise, the

age of a display and how frequently it’s used can affect its gamut.

Displays and printers cannot reproduce the same colors consistently when their

gamuts don’t overlap. For example, displays are capable of showing brighter and more

saturated colors than the colors produced by a printer. The illustrations below show

representations of the range of color and brightness values each device is capable of

displaying. If you superimpose the printer’s gamut on the display’s gamut, some of the

display’s colors fall outside the range of the printer’s gamut. The printer is incapable of

reproducing the full range of colors in the image displayed onscreen because of the

printer’s smaller gamut. Color values that are contingent upon the ability of a device to

reproduce color are known as device dependent.

Display’s gamut

Printer’s gamut

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