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