Graphics Programs Reference
In-Depth Information
Fig. 6-28
The ImagePrint
RIP/Print driver allows a
user to conduct cross
simulation using RGB or
CMYK files. The color
management tab has an
optional pop-up menu
named
Proofer
, where the
profile for cross-simulation
is selected. By selecting
the 3M Matchprint profile,
a conversion from Source
RGB to 3M Matchprint to
the paper profile (Epson
Velvet) will be produced.
v2 in our example thus far. The image loaded in the RIP can be CMYK
and the RIP will recognize this embedded profile. By picking a profile in
the
Proofer
pop-up menu, you are telling ImagePrint that you want cross-
rendering. Since ImagePrint uses RGB output profiles, it will produce a
CMYK-to-RGB conversion when printing this document.
When cross rendering to an ink-jet, it's helpful to use a paper that
more closely matches the paper white and surface texture of the final
printed piece you hope to match. Some manufacturers make specific ink-
jet papers for proofing. These papers usually have a yellowier paper white
to more closely match the proof or press papers. These papers usually
have no optical brighteners added. The absolute colorimetric intent will
help a great deal, but the closer you can match the papers initially, the
better the match. Be sure to carefully trim away any paper that falls
outside the printable area. That paper will be untouched and will not
simulate the paper white. Your eye will adapt to the original paper white,
which should be avoided. Try to output the proof to the same size as
the final print process. That is, if the final image is to be reproduced as a
4 ¥ 6, output the image to the proofer at that size as well.
Identical images at different sizes can appear dissimilar in color;
it's just an optical illusion. Obviously in the example, where I made an
