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the chromaticity for G as lying between
the values for G in the Adobe RGB and
ColorMatch color-space profiles. It was
proposed by Bruce Fraser, who claims
that it includes most of the colors in the
SWOP CMYK gamut. The R and B used
in the Bruce RGB and Adobe RGB color-
space profiles match.
NTSC (1953): NKNTSC.icm
(Windows)/ Nikon NTSC (1953)
4.0.0.3000 (Macintosh)
This is the color space for video defined
by the National Television Standards
Committee (NTSC) in 1953 and used in
early color televisions. This color space
is also used in some Far-East newspa-
per and printing organizations. The
corresponding RGB setting in Adobe
Photoshop is "NTSC (1953)."
Adobe RGB (1998): NKAdobe.
icm (Windows)/ Nikon Adobe RGB
(1998) 4.0.0.3000 (Macintosh)
A color-space profile defined in Adobe
Photoshop 5.0. It has a wider gamut
than sRGB and includes the colors
found in most CMYK gamuts, making
it suitable for users involved in desktop
publishing. The corresponding RGB
setting in Adobe Photoshop 5.0 is
"SMPTE-240M," the corresponding
setting in Adobe Photoshop 5.5 or later
"Adobe RGB (1998)."
CIE RGB: NKCIE.icm (Windows)/
Nikon CIE RGB 4.0.0.3000
(Macintosh)
A video color-space profile established
by the Commission Internationale
de l'Éclairage (CIE). While it boasts a
fairly wide gamut, it suffers from the
drawback that the area devoted to
the reproduction of cyan is relatively
small. The corresponding RGB setting in
Adobe Photoshop is "CIE RGB."
Adobe Wide RGB: NKWide.icm
(Windows)/ Nikon Adobe Wide
RGB 4.0.0.3000 (Macintosh)
This color-space profile, designed
by Adobe, incorporates most of the
visible colors. This however has the
consequence that most of the colors it
can express can not be reproduced on
standard monitors and printers. The
corresponding RGB setting in Adobe
Photoshop 5.0 or later is "Adobe Wide
RGB." The gamut of colors that can
be expressed in the above color-space
profiles is shown in the following
chromaticity (x, y) graph. The greater
the area enclosed by the triangle that
represents the color-space profile, the
wider its gamut.
Gamut
215
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