I'll let someone else explain the technical
aspects of a curve and an ICC profile, but for one thing--you cannot use a curve
in place of a profile. ; An ICC profile is, for instance, the color space of
your monitor, the working space you use in PS, the paper profiles you choose for
printing (and then make sure your printer chooses 'no color adjustment').
The curves are what QTR 'tells' the printer as to how to use what colors (what
nozzles to use). There will be someone that can tell you much better
technically the differences--hopefully.
If you using a PC, you will want to convert
your RGB image to Gray-LAB (which is an ICC profile--and should be in your
dropdown in PS). Do any tweaking here (I won't go into softproofing here),
save this as a 'master' file in tiff. Then--convert this file to
Gray-matte or Gray-photo (both ICC profiles--you will find these 3 in a zip on
the QTR download page--the RGB profiles are for use in Qimage) depending
upon the paper you choose to use for printing. Having the master in
gray-LAB allows you to go back and print easily on a matte or semigloss/gloss
paper. You will choose the gray-matte or gray-photo tiff to use in
QTR.
Hope this helps.
Diane
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----- Original Message -----
Sent: Saturday, April 02, 2005 5:14
PM
Subject: [QuadtoneRIP] Dumb
questions
Do you print greyscale or RGB? QTR seems to do
it's thing the same regardless of
what mode you are in, so it would be
better to use the smaller file.
And, yes, I hate to admit it, but I'm one
of those who don't know the difference
between curves and ICC
profiles.