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Source
Transparency
Mode Command
The Select Source Transparency Mode command sets the
source image’s transparency mode to transparent or
opaque. This command determines whether the source’s
white pixels are applied to the destination.
? * v # N
# = 0 - Transparent
1 - Opaque
Default = 0
Range = 0, 1 (other values cause the com-
mand to be ignored)
With a transparency mode of “0” (transparent), the white
regions of the source image are not copied onto the
destination. With a transparency mode of “1” (opaque), the
white pixels in the source are applied directly onto the
destination. White pixels are unaffected by pattern or
foreground color; they are either white or transparent.
Note For RGB color images, “white” pixels are those for which all
color primaries are greater than or equal to their white
reference values. For CMY color images, “white” pixels are
those for which all color primaries are less than or equal to
their white reference values.
When using Render Algorithm 2 (?*t2J), black pixels are
affected by the transparency mode instead of white pixels.
White dots introduced in the dithering process are not
subject to transparency modes.
Refer to the preceding definitions and the discussion of
Figure 5-3 for an explanation of the effects of source
transparency.
The PCL Print Model 5-7The PCL Print Model 5-7