[argyllcms] Re: Scaled Rec709 TRC question

  • From: János, Tóth F. <janos666@xxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Fri, 11 Feb 2011 21:46:44 +0100

I solved those problems by adding a new curve to type for lcms.

The current initial values with the "Bright" preset are:

exponent = 2.2;
coefficient_exponential = 1.099;
constant = 0.099;
coefficient_linear = 4.5;
constant_linear_range_length = 0.018;

This produces an exact Inverse Rec709 Encode curve on the display. But it's
still looks bad.

So, the question remains: What parameters should I use for the Dim and Dark
presets to match with the scaling of ArgyllCMS/dispcal?

Other related posts: