CHAPTER 4
238
Graphics
Color spaces
CalRGB
Sources of
color values
Color values
A, B, C
sc, SC, sh,
BI, Do
(image XObject)
A
sc, SC, sh,
BI, Do
(image XObject)
A, B, C
sc, SC, sh,
BI, Do
(image XObject)
scn, SCN, sh,
BI, Do
(image XObject)
DefaultRGB
Another
(3-component)
color space
Conversion
to internal
X, Y, Z
values
CIE-
based
color
spaces
CalGray
X, Y, Z
Lab
n
components
ICCBased
DeviceRGB
rg, RG, sc, SC, sh,
BI, Do
(image XObject)
R, G, B
DefaultCMYK
Device
color
spaces
C, M, Y, K
DeviceCMYK
k, K, sc, SC, sh,
BI, Do
(image XObject)
Another
(4-component)
color space
DefaultGray
gray
DeviceGray
g, G, sc, SC, sh,
BI, Do
(image XObject)
Another
(1-component)
color space
Alternative
color
transform
tint
Another
color space
Separation
scn, SCN, sh,
BI, Do
(image XObject)
n
components
Special
color
spaces
Alternative
color
transform
Another
color space
DeviceN
scn, SCN, sh,
BI, Do
(image XObject)
sc, SC, sh,
BI, Do
(image XObject)
scn, SCN
index
Indexed
Table
lookup
Another
color space
Another
color space
pattern
Pattern
dictionary
Pattern
FIGURE 4.12
Color specification