[argyllcms] Improve the number of test patches by skipping plate(s) when printing?

  • From: Semund Svelle <semund@xxxxxxxx>
  • To: ArgyllCMS Mailing List <argyllcms@xxxxxxxxxxxxx>
  • Date: Mon, 19 Oct 2015 10:26:06 +0000 (UTC)

I havean idea how to improve the number of test points, and saved both timeand
materials when printing test patches with techniques such asscreen printing and
offset. It's generally both expensive and timeconsuming to produce enough test
patches to obtain a perfect profile.Let's say you create test fore CMYK: it is
possible to skipsome of the channels when printing. This could make
significantlymore test points to render a profile from, without producing
moreprinting plates.

Variations that can be printedwith testpatches fore CMYK:

CMYK, CMY, CMK, MYK, YCK, CM,CY, MY, CK, YK, CK, C, M, Y, K

1000 testpatch rendered forCMYK, or 4 plates, will most extreme print 15,000
test pointvariations. All test points will presumably no longer be perfect
unique, butit should work quite well if the default OFPS algorithm is used,
(andtarget -G argument) when creating test patches. The advantages ofsuch an
approach would be even greater if printing more than 4channels, if it is time
to make all the variations.


Ido not know if other than me will have a need for this, or maybe do someone
this?

Is there information on how tocreate the XYZ values ​​ti1 file from the CMYK,
CMY, RGB values? I'll tryto create a spreadsheet that automates it.


Bestregards,
Semund Svelle

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  • » [argyllcms] Improve the number of test patches by skipping plate(s) when printing? - Semund Svelle