[argyllcms] Re: Black turning down problem (the -r trick)
- From: Elena [service address] <1007140@xxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 14 Jan 2011 15:03:17 +0100
Hello Graeme
On 14-Jan-2011, Graeme Gill wrote:
> There is no such thing as "virtually" smoothed - the smoothing parameters
> are used in the construction of the A2B cLUT. Some sort
> of separate smoothing can't be applied when the tables are being
> read, because they are actually being analytically inverted in
> creating the B2A. So to implement such a feature would mean actually
> creating 3 A2B tables (3 x the execution time there), and wiring the
> B2A table construction to access the three different A2B tables
> rather than one. The B2A table lookups get some speedup from caching
> the inverse lookup calculation values and creating the three tables
> simultaneously - this would be lost with three separate A2B tables.
>
> So I don't think this is a good direction to go in. Fixing the underlying
> problem is probably a better use of time and effort.
Yes I agree on your points. After all, after a better analysis, it
looks that by using a high -r any errors are just more spreaded,
less noticeable, but always there.
/&
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