[argyllcms] Re: ArgyllCMS V1.1.0 RC2 is now available

  • From: "Alastair M. Robinson" <profiling@xxxxxxxxxxxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 09 Dec 2009 09:41:15 +0000

Hi :)

Graeme Gill wrote:

By default the code ignores any patches that match existing patch
colors. Currently it's set to a tolerance of 0.001, so yes, with
extreme power values there will be values that are regarded as duplicates
and will be ignored.

Ah, yes, I see.

It's easy enough to change that tolerance
if you think there is any advantage in it.

Hmmmm - maybe the tolerance itself needs to be adjusted according to the power function? I'll experiment when I get a chance and report back!

If I understand what you are talking about, you mean the padding
out of a final column with media color or spacer color patches so
that they are all the same length ?

That's right.

Padding out the last column is needed for some devices.


What sort of problems does doing this cause ?

Well, I know this is a pathological case, but when a single channel at 100% is close to saturating the paper, a media colour with 200% TAC does soak the paper. If it were possible to make these patches obey the ink limit specified with -l that would solve my issue - I could then issue "-l100" to the targen command, and such patch values would be scaled so as not to exceed 100% at the printtarg stage?

All the best
Alastar M. Robinson

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