[argyllcms] Re: Profiling between two images

  • From: Gerhard Fuernkranz <nospam456@xxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 19 Feb 2009 23:03:52 +0100

Pascal de Bruijn wrote:
> With pretty extreme values in xicc/xmatric.c all my curves are very smooth:
> #define XSHAPE_BASE  0.001
> #define XSHAPE_HBASE 0.01

I've no feeling how the particular regularization for the shaper
functions in xmatrix.c will behave, but at least typical smoothing
factors for RBFs, splines and other linear models rather follow a
logarithmic scale, so the range for useful smoothing factors
(slight...strong smoothing) can indeed span a few powers of 10.


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