1221
Index
and B operator 230 CMYK conversion 481
details 215-218 halftones for 506
device-dependent 210, 212-213, 294, 478 RGB conversion 481
device-independent 210-212, 215 transfer function 485, 506
dictionaries. See graphics state parameter dictionaries gray levels
for filling 230 CMYK conversion 481
initialization 210, 558, 560 color values 236
and S operator 231 DeviceGray color space 242
and sampled images 337 G operator 288, 986
setting 219-220, 986-988 g operator 288, 986
for shading patterns 302 halftones, approximation with 486-489, 494-495, 497
for stroking 230-231 pixel depth 37
transparency-related 560, 1112 RGB conversion 481
See also gray ramps 962, 966
alpha source parameter GrayMap entry (version 1.3 OPI dictionary) 982
black-generation function
grayscale color representation
character spacing parameter
and CMYK, conversion between 481, 486
current alpha constant
DeviceGray color space 237, 242
current blend mode
in halftones 487
current clipping path
multitone components, specifying 269
current color
in output devices 235, 480
current color space
rendering 38
current halftone
and RGB, conversion between 481
current line width
current rendering intent Greek characters 463-464
current soft mask green color component
current transfer function CMYK conversion 481, 484
current transformation matrix (CTM) DeviceRGB color space 241-242
flatness tolerance grayscale conversion 481
horizontal scaling parameter halftones for 506
leading parameter in Indexed color table 263
line cap style initialization 243
line dash pattern magenta, complement of 482
line join style and threshold arrays 495
miter limit transfer function 485
overprint mode green colorant
overprint parameter additive primary 241-243
smoothness tolerance display phosphor 264
stroke adjustment parameter PANTONE Hexachrome system 269
text font parameter grestore operator (PostScript) 987, 992, 1128
text font size parameter Groove border style 920
text knockout parameter group alpha
text line matrix group backdrop, removal of 538
text matrix in isolated groups 539
text rendering matrix notation 535, 537, 543
text rendering mode and overprinting 569
text rise parameter in page group 543
text state parameters soft masks, deriving from 546, 552-553
undercolor-removal function group attributes dictionaries 361
word spacing parameter form XObject 359
graphics state stack 214-215, 219 page 146, 556, 576
depth limit 992, 1128 S entry 361, 556, 559
gray color component 242 transparency group XObject 556, 559
black, complement of 481 Type entry 361