[argyllcms] Re: gamut mapping
- From: edmund ronald <edmundronald@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx, Klaus Karcher <karcher@xxxxxxxxxxxxxxxxx>
- Date: Thu, 23 Jul 2009 22:36:10 +0200
I don' know if this is relevant here, but I'm highly sceptical of
using Argyll to achieve adaptive gamut compression. When I tried that,
prints got worse rather than better. Of course I'm not very
knowledgable about this computer stuff although I trust my eyes - but
maybe my friend Klaus has an opinion?
Edmund
On Thu, Jul 23, 2009 at 3:42 PM, nome cognome<darkbasic4@xxxxxxxxx> wrote:
> Thank you very much for the explanation.
>
> I think the following should be the right way, what do you think about it?
>
> tiffgamut -d1.0 -f90 -pj -ir -cmt ProPhoto.icm photo.tif
> collink -qh -G photo.gam -ip -cmt -dpp ProPhoto.icm printer.icc
> photo2printer.icc
> cctiff photo2printer.icc photo.tif readytoprint.tif
>
>
>
> I agree I should choose viewing conditions from the enumerated
> choices, but I want to be sure if I fully understand their meaning.
> The input viewing conditions (-c) should be mt (Monitor in typical
> work environment) beacuse I judge the picture in terms of how I see it
> at the monitor, am I right?
> The output viewing conditions (-d) should be pp (Practical Reflection
> Print) because I intend to print the image, am I right?
> If I wanted to display the image on a second monitor with a lower
> gamut instead of print it I had to choose mt for the output viewing
> condition too, am I right?
>
>
> From cctiff documentation: "-p use slow precise floating point
> conversion, rather than fast integer routines", but also "the -c, -p,
> -k and -r options are intended to aid debugging"
> So should I use -p to achieve the best possible quality or not?
>
> Cheers,
>
>
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