Graphics Programs Reference
In-Depth Information
O
The sRGB (standard RGB) color space is the de facto standard on the Web. If
a camera doesn't support color profiles, or if an image lacks a color profile, or if
the browser doesn't support color profiles, one can assume that the image will
be in the sRGB space. Think of sRGB as the lowest common denominator and
narrowest of color spaces.
Both Adobe RGB 1998 and sRGB were designed to be viewed under D65 lights.
D65 lights have a color temperature of 6500 degrees above absolute zero, which
most closely simulates the light of the sun through Earth's atmosphere. If you
don't use D65 daylight bulbs in your environment, then the colors you see will
be shifted from these standards.
There are many other color spaces in addition to Adobe RGB 1998 and sRGB;
ColorMatch and ProPhoto are two popular examples. Figure 15.3 shows the
subtle differences in viewing the same data in different color spaces.
ThesRGBcolor
space was designed
to be viewed under
typical home and
office viewing light-
ing conditions rather
than the much darker
environment speci-
fied in the adobe
RGBcolorspace.
A
B
C
D
FIGURe 15.3
Color profiles: Adobe 1998 (A), ColorMatch (B), ProPhoto (C), and
sRGB (D)
