[argyllcms] Re: Spectral to sRGB
- From: Sam Berry <samkberry@xxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 12 Oct 2010 11:01:08 +0100
I would think, if you are just after the numbers, that remeasuring with
spotread (which should give you more instantly usable numbers) may be the
easiest way if you still have the object to measure.
Spotread will give you numbers relative to 100% reflectance.You can set a
paper white as a reference in spotread too, which may give you a result you
prefer. Not sure of an easy, non-bodged way to do it from an .sp file....
Sam Berry
On 12 October 2010 10:04, Pascal de Bruijn <pmjdebruijn@xxxxxxxxx> wrote:
> On Tue, Oct 12, 2010 at 9:55 AM, Sam Berry <samkberry@xxxxxxxxxxxxxx>
> wrote:
> > If you plug the file into 'specplot' it will give you the XYZ values...
> if
> > you plug these into http://www.brucelindbloom.com/ > Calc > CIE
> Calculator
> > it will give you the sRGB numbers. L=100 is the only way to consider an
> .sp
> > file without a white reference, which specplot does not account for. You
> can
> > change the L value on Bruce's site.
>
> How do I create a reference white? measure the paper?
>
> In any case, I'm again getting a way too bright tint...
>
> Regards,
> Pascal de Bruijn
>
>
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