CHAPTER 4
282
Graphics
Example 4.20
20 0 obj
% Tint transformation function
<< /FunctionType 4
/Domain [ 0.0 1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 1.0 ]
/Range [ 0.0 1.0 0.0 1.0 0.0 1.0 ]
/Length 27
>>
stream
{ 5 3 roll pop pop }
endstream
endobj
quadtone (four-component) image shown in Plate 7.
Example 4.21
5 0 obj
<< /Type /XObject
/Subtype /Image
/Width 288
/Height 288
/ColorSpace 10 0 R
/BitsPerComponent 8
/Length 105278
/Filter /ASCII85Decode
>>
stream
… Data for grayscale image …
endstream
endobj
10 0 obj
[ /Indexed
15 0 R
255
30 0 R
]
endobj
% Image XObject
% Indexed color space for image
% Base color space
% Table has 256 entries
% Lookup table