Re: Proof Colors in Photoshop
Re: Proof Colors in Photoshop
- Subject: Re: Proof Colors in Photoshop
- From: Andrew Rodney <email@hidden>
- Date: Fri, 02 Aug 2013 10:05:31 -0600
On Aug 2, 2013, at 9:58 AM, Mark Stegman <email@hidden> wrote:
>
> If these colours are outside the visible spectrum then how can we see them?!
We can't.
We can numerically define a primarily that falls outside of human vision as Kodak did when creating this color space. All RGB working space are synthetically created (just a pile of math and numbers). You can build your very own RGB working space directly in Photoshop's color settings and do the same.
>> I thought Lab defined the limits of the human visual system. Does ProPhoto occupy a space outside Lab
It does indeed. Shown in the example URL's I posted.
> Are we getting confused with the number of colours that can be theoretically described within a colour space and the number of colours we can discriminate.
Nope. Has nothing to do with the numbers of colors. That's encoding. We're talking gamut. There ARE "colors" that are defined within ProPhoto RGB (and other synthetic color spaces) that fall outside the gamut of human vision.
Andrew Rodney
http://www.digitaldog.net/
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