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Date:      Wed, 30 Dec 2015 16:02:12 +0100
From:      Ralf Mardorf <ralf.mardorf@rocketmail.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: [OT] Light frequency or wavelength to (eg RGB) colour
Message-ID:  <20151230160212.5d62af6f@archlinux.localdomain>
In-Reply-To: <20151231012759.I8562@sola.nimnet.asn.au>
References:  <20151231012759.I8562@sola.nimnet.asn.au>

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On Thu, 31 Dec 2015 01:36:38 +1100 (EST), Ian Smith wrote:
>does anyone know of a method - preferably a formula - for converting 
>known frequencies (or complementarily, their wavelengths) within the 
>visible spectrum to its colour rendition in RGB, CMYK or whatever?

I can't help you with your request. However, are you already aware that
the first thing you need to do, assumed you want to see the true
colours on your display, is to calibrate your display? To do this you
need hardware, a colorimeter.



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