[argyllcms] Re: help with camera profile
- From: edmund ronald <edmundronald@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 1 Aug 2012 15:57:27 +0200
I'm not very smart. Why a shaper?
Edmund
On Wed, Aug 1, 2012 at 3:48 PM, Ben Goren <ben@xxxxxxxxxxxxxxxx> wrote:
> On 2012-07-31, at 7:03 AM, Graeme Gill wrote:
>
> > The really interesting
> > discovery/realization though is that because input profiles typical use
> charts
> > with relatively small numbers of patches, the shaper/matrix model
> fitting can get
> > stuck at a local minimum if the curves and matrix are all fitted at once.
>
> This may help explain why I've always had better luck with LUT profiles
> for cameras.
>
> I'm planning on spending some time on profiling this week. I may send you
> some files if I continue to have better luck with LUT than shaper /
> matrix....
>
> Cheers,
>
> b&
>
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