I cannot recommend "enough" the use of the -w parameter, as Normand suggested,
as a "policy" to better understand how targets are generated (for those who
don't have access to a tool like PatchTool). ICC profiling does not need to be
a "black box".
As a matter of fact, as I was thinking out loud to myself, it dawned on me
that, there could be a "utility" to generate targets (ti1 files)
*interactively* (I don't think I have enough programming skills to do this, on
my own, though?) but, I can see the value of something like an interactive 3D
display application where one can experiment with every targen parameters, and
immediately sees, in real time, as in a browser window, the effect in 3D of
parameters selection.
Maybe not all targen parameters are worth adding to this interface but... you
get the idea.
/ Roger
-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx <argyllcms-bounce@xxxxxxxxxxxxx> On Behalf
Of Normand Fortier
Sent: December 21, 2019 9:09 AM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Custom "non-Argyll" charts
I've tried this initially too, but the presence of many gray patches (I had
specified 128 I think) resulted in an zone around the L axis with no patches,
probably caused by the way patches are spread by targen. This has been observed
by others, although I can't find the links at the moment. Do observe the result
of targen (-w -W) to make sure you're not getting unwanted results. That is why
I decided instead to create a target with grey / near neutral patches, pick the
grey / near neutral patches from the resulting target and add them to the
general purpose target ti1.
Normand
