[argyllcms] Making a composite profile, combining ti3 & colprof -r question

  • From: Derin Korman <derin.korman@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 12 Jun 2014 22:53:32 +0100

For experimenting, I combined two ti3 files (of two different hutchcolor
targets), simply grabbing the patch data from one, adding a prefix of a
letter to patch namez (so V1 becomez ZV1 for example) and pasting them on
the bottom of the others, and updating patch count to match. This yielded
much greater delta E but perceptually better profiles I think. I was
wondering if there is any reason I should not do this. What I was trying to
overcome is channels crossing over each other near highlight/shadows and
causing casts/noise

Secondly, I tried employing the -r parameter with colprof, but trying any
value from 1 to 30, I could not get the delta e to change even one decimal
point, does this imply that it does not have any effect? I also tried the
-V but that also didn't change delta E (should it?). When I enter -r 0,
that changes things, but I don't own a device that has 0.0 percent error :)

here are the two ti3 files and the frankenfile if you'd like to take a look.





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