[argyllcms] Re: ColorCheckerSG
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 19 Sep 2018 10:16:32 +1000
Andreas Schneider wrote:
Hi,
In darktable-chart you have to select the gray ramp which seems to be A1 to
N10 in ColorCheckerSG.cht.
that doesn't seem right. The surrounding white/grey/black patches
are for uniformity correction, and are the strips:
A1 - N1, A10 - N10
A1 - A10, N1 - N10
But with only 3 levels, they won't give much resolution.
This doesn't seem to work with darktable-chart [see
attachement], so I would like to add the normal ColorChecker gray ramp E5 to
J5. However I didn't find any documentation about the cht format so far.
I'm not sure why you need to modify the .cht, since patches
E5 - J5 are already identified in it.
Documentation is here:
<
http://www.argyllcms.com/doc/cht_format.html>
Cheers,
Graeme Gill.
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