[argyllcms] Re: Output profile parameters

Roger Breton wrote: 
Is there, by any chance, any parameters I could type on the command line for
creating output profiles, whereby I could limit the minimum dot size used to
convert B2A? The application I'm dealing with, flexo, can only deal with
dots greater or equal to 2%. An 1% dots have to be deleted, painstakingly,
in Photoshop through selections techniques or levels. Let me add as a
further constraint that areas of 0% must be preserved.

Is this possible today with argyll? Or am I pushing the enveloppe? 

It's not possible as things stand. Such a thing is probably best handled
at a calibration level (applying per channel device curves after
the profile), but this involves some considerable work (ie. it's
on my wish list). I did add a feature to limit maximum K, and while this
works, it has a great impact on profiling speed, and also should probably
be removed to a calibration function.

I'm not sure though, how a discontinuity such a you are suggesting,
could be handled within the profiling loop. In theory it might result
in color artefacts ?

If this is such a special case for flexo, why can't it be incorporated
in the imagesetted RIP transfer curves ?

An alternative might be to directly edit the B2A table device curve tags,
if a suitable editor is available.

[One could write code to do this, but it is such a special case,
 it's hard to justify, and a general tool is a lot of work.]

Graeme Gill.

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