CHAPTER 4
276
Graphics
DeviceN
color space consisting of three color components
named
Orange
,
Green
, and
None
. In this example, the
DeviceN
color space,
object 30, has an attributes dictionary whose
Colorants
entry is an indirect refer-
ence to object 45 (which might also be referenced by attributes dictionaries of
other
DeviceN
color spaces).
tintTransform1
, whose definition is not shown, maps
three color components (tints of the colorants
Orange
,
Green
, and
None
) to four
color components in the alternate color space,
DeviceCMYK
.
tintTransform2
maps
a single color component (an orange tint) to four components in
DeviceCMYK
.
Likewise,
tintTransform3
maps a green tint to
DeviceCMYK
, and
tintTransform4
maps a tint of PANTONE 131 to
DeviceCMYK
.
Example 4.12
30 0 obj
[ /DeviceN
[ /Orange /Green /None ]
/DeviceCMYK
tintTransform1
<< /Colorants 45 0 R >>
]
endobj
45 0 obj
<< /Orange [ /Separation
/Orange
/DeviceCMYK
tintTransform2
]
/Green [ /Separation
/Green
/DeviceCMYK
tintTransform3
]
/PANTONE#20131 [ /Separation
/PANTONE#20131
/DeviceCMYK
tintTransform4
]
>>
endobj
% Color space
% Colorants dictionary