Re: profiling deeper colors
Re: profiling deeper colors
- Subject: Re: profiling deeper colors
- From: email@hidden
- Date: Thu, 13 Dec 2001 07:55:09 EST
In a message dated 12/12/01 8:55:15 PM, email@hidden writes:
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How does profiling software handle colors deeper than swop, IOW not really
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cyan but bluer than cyan in inkjet printers?
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Situation: My rip software can control ink limits in 3 areas; 1)light cyan,
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2)
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regular cyan and 3)combination C-lc to produce a deeper color than 100%
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cyan.
Most CcMmYK profiles for inkjets are built as CMYK profiles (or even RGB
profiles) with the final C// and M/m split taking place after the profile.
Its possible (but not trivial) to profile such devices as six channel
devices, but control of splt channels is franly more convient as special
settings at the RIP level. If you use true channel seperation for the light
and dark components at the profile level then the profile needs to be applied
after the fact (in RIP conversion, or color server conversion) since
Photoshop is not designed for this, and its color engine won't handle it. You
are asking for even more than a controlled blend of light and dark compone
nts, however. You are asking for the type of control that good profiling
software allows for the black channel, where you get to set the total
combined ink limit, the toe, and the shape of the curve!
C. David Tobie
Design Cooperative
email@hidden