profiling deeper colors
profiling deeper colors
- Subject: profiling deeper colors
- From: "Peter Merck" <email@hidden>
- Date: Wed, 12 Dec 2001 20:48:28 -0500
Dear Colorsyncers
How does profiling software handle colors deeper than swop, IOW not really
cyan but bluer than cyan in inkjet printers?
Situation: My rip software can control ink limits in 3 areas; 1)light cyan, 2)
regular cyan and 3)combination C-lc to produce a deeper color than 100% cyan.
I've tried setting up 100%C with a percentage of lc for 2 reasons, one is to
increase ink density and the other was to increase gamut. I'm coming to the
conclusion that this setup does not work very well. My HP 5000 profiles work
very well with very little lc added to C, a gamut larger than my matchprint
profile. My Arizona with large amounts of lc added to C produces a profile
that washed out mid to shadow transitions in blues and reds (M is set up the
same way) and gamuts less than the matchprint. The first profile I made
worked but the image looked washed out, therefore my reasoning for increasing
the 100% ink densities. Since then, the profiles have been trouble.
I use Profile maker and have tried several combinations of GCR/UCR. Viewing
the profiles in Colorthink doesn't give any indication something would be
wrong, even white points seem normal, no uv problems.
Opinions please?
Pete Merck