FreeLists / argyllcms / [argyllcms] Re: Detecting if a point is in or out of gamut

[John Weissberg <jweissberg@xxxxxxxxxxxxxxxx>]

With function xicclu and an ICC profile that contained an LUT, I would 
like to know more about the differences between options:
-fif and -fb

Klaus Karcher wrote:
> John Weissberg wrote:
> > We are building printer profiles. We are searching for a method to 
> > detect whether a given point in is in or out of the printer's gamut.
> > [...]
> >
> > Do any of the existing functions/methods in argyll cms do this?
> xicclu -fif -ia works reliable on my experience, e.g.:
>
> klaus$ xicclu -ff -ia ~/Library/ColorSync/Profiles/ISOcoated.icc
> 0 100 100 0
> 0.000000 100.000000 100.000000 0.000000 [CMYK] -> Lut -> 47.262251 
> 68.630662 44.935377 [Lab] (clip)
> klaus$ xicclu -fif -ia ~/Library/ColorSync/Profiles/ISOcoated.icc
> 47.2 68.5 44.8
> 47.200000 68.500000 44.800000 [Lab] -> Lut -> 0.000000 0.999724 0.998905 
> 0.002262 [CMYK]
> 47.2 69.0 45
> 47.200000 69.000000 45.000000 [Lab] -> Lut -> 0.000000 1.000000 1.000000 
> 0.000000 [CMYK] (clip)
> 49.0 68.5 44.8
> 49.000000 68.500000 44.800000 [Lab] -> Lut -> 0.000000 0.987024 0.987596 
> 0.000000 [CMYK] (clip)
> Klaus
--
John Weissberg
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