[Openicc] new: Proof colour space

[almccart at lexmark.com]

Graeme,

I think the distinction is that an RGB proofing space would be 
shaped like a printer space - i.e., have print-referred image state.
That is not the case with the common 'working spaces' as far as
I know.  I am very interested to hear of a public domain
print-referred RGB space.  It would be advantageous to use
an existing one if such is available.

Best regards,
Ann McCarthy
Lexmark CPD
Imaging Systems Engineering
ICC Workflow WG Chair





Graeme Gill <graeme at argyllcms.com>
Sent by: openicc-bounces at lists.freedesktop.org
05/02/2006 07:34 PM

 
        To:     openicc at lists.freedesktop.org
        cc: 
        Subject:        Re: [Openicc] new: Proof colour space


Jan-Peter Homann wrote:

> As I understand your concept of an "proofing colorspace" as an 
> intermediate colorspace between widegamut colorspaces like 
> camera-profiles on RAW data or AdobeRGB and printoutput.
> 
> Finetuning of colors and saturation is done in the "proofing 
> colorspace", if the work is done, gamutmapping from "proofing 
> colorspace" to print output colorspace needs and can be done either with 

> relatice colorinteric and blackpoint-comepnesation or with ICCv4 
> perceptual gamutmapping, if the gamut of the "proofing colorspace" is 
> similar of a better "reference medium gamut" for ICCv4 profiles.

So your really talking about a "working space" then ?

I don't see any connection to proofing. Normally the
target output device (or an emulation of it) is the "proof",
hence it's colorspace is the "proofing space"

Graeme Gill.

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