[argyllcms] Re: testing

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Mon, 15 Oct 2018 11:11:32 +1100

Andreas Kraushaar wrote:

Hi Andy,

you might check a method we have develop termed „discernible tonal steps“:
https://www.fogra.org/en/fogra-research/wc-digital-printing/digital-printing-current-projects/imagequality-35003/research-topics/tonal-steps/evaluation-the-number-of-tonal-steps-28cmyk29.html

yep, I'm sure if you average enough samples & area, that the underlying
step size will be discernible. A question though, is if you
average a lot of them and find no discernible steps, does that
mean that the printing system has high bit depth, or that you
haven't average enough samples yet :-)

Cheers,
        Graeme.

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