Ink limiting on Ultrachrome
Ink limiting on Ultrachrome
- Subject: Ink limiting on Ultrachrome
- From: Thomas Holm / Pixl <email@hidden>
- Date: Thu, 27 Feb 2003 08:15:40 +0100
I've worked quite a bit with profiling printers with Ultrachrome inks
lately, and have discovered problems, similar to the ones described in a
recent thread about the profie curving in on itself. Essentially the output
becomes unreliable in the shadows (closes down), if the ink isn't limited
*enough*.
If solid densities for each color are too high the profile just isn't
working satisfactorily.
Now the big question is how do you find the maximum allowable density for
each ink?
It is of course possible just to do trial and error profiling and change the
linearisation in between, and then look at a Hex plot (or spider plot) and
see if the ends start to curve in, but it would be great if the sweet spot
could be found without having to build half a ton of profiles.
Essentially, how do you find out at what point the inks start to "curve
inwards" before building a profile - anyone?
Best Regards
Thomas Holm / Pixl ApS
- Photographer & Colour Management Expert
- Adobe Certified Training Provider in Photoshop.
- Imacon Authorized Scanner Training Facility
- Remote Profiling Service (Output ICC profiles)
- Seminars speaker and tutor on CM and Digital Imaging etc.
- Home Page: www.pixl.dk 7 E-mail: email@hidden
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