Re: filmscanners: which space?

["Karl Schulmeisters" <karlsch@earthlink.net>]

Consider this

CMY are the complimentary colors of RGB.  This means that according to color
theory, you can mix any color in RGB that you would want to with CMY.
The difference is that K is gray scale - intensity if you will.  So what
that means is that if you were to look at a plot of the color spaces with
the X axis going 'into' the page, for RGB, you would see only one 'sheet' of
color space.  For CMYK you would see a 'sheet' corresponding to each
gradation of 'K'.  Clearly there is more gamut in CMYK.

----- Original Message -----
From: "Karl Schulmeisters" <karlsch@earthlink.net>
To: <filmscanners@halftone.co.uk>
Sent: Sunday, May 27, 2001 7:32 PM
Subject: Re: filmscanners: which space?


> I'm not a photoshop expert.  I do know a bit about the abstract math
behind
> the colorimetry.  I don't see why you would not be able to do what you
> suggest.
> ----- Original Message -----
> From: "Robert E. Wright" <rew@impulse.net>
> To: <filmscanners@halftone.co.uk>
> Sent: Sunday, May 27, 2001 6:55 PM
> Subject: Re: filmscanners: which space?
>
>
> > > CMYK is not a reduced color space compared to RGB.  Printer CMYK is.
> But
> > > that is because the color space of the inks is more reduced.
> >
> > OK. Are you suggesting that some sort of CMYK settings in Photoshop
could
> > make the CMYK mode's gamut more similar to RGB, and thus reduce the
losses
> > in RGB to CMYK to RGB conversions? (Asumming you would print to these
CMYK
> > settings.)
> >
> > Bob Wright
> > Oops. That should have been ..."would not print to these CMYK
settings..."
> >
>