[argyllcms] Re: Black turning down problem (the -r trick)

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Fri, 14 Jan 2011 12:28:07 +1100

Elena [service address] wrote:
FYI... from what I'm experiencing, the most visible differences (call it
errors) rendering a testchart proof (absolute) with a heavily smoothed
profile and with an almost non smoothed one, is in the very dark and black 
patches.

The real matter also is that is not easy to make precise and predictable
measurements in those dark areas. Measurements tend to be noisy due to
instrument, to printing process and paper inconsistencies. For a good job,

It could be noise, but it could also be that it is the dark area where
the device characteristic has the most "bend", and increasing smoothing
makes the table "stiffer", hence less able to follow the "bend".

Graeme Gill.

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