Re: Silly question department, Display Media White Point
Re: Silly question department, Display Media White Point
- Subject: Re: Silly question department, Display Media White Point
- From: Andrew Rodney <email@hidden>
- Date: Fri, 27 Feb 2015 07:15:59 -0700
> On Feb 26, 2015, at 9:09 PM, Roger Breton <email@hidden> wrote:
>
> They are no more "real" than synthetic RGB spaces.
Explain ProPhoto RGB to me, especially those values which are invisible to a human. RGB working space are simple bits of math (gamma, white point and chromaticity values). You can build one yourself in Photoshop's Color Settings, call it Breton RGB. It can have zero basis on any real world device. Tell me how this works with a CMYK device that is quite real world, using real inks and papers and mechanically opreated bits and pieces?
A data set as I understand it is something real, measured and hopefully an agreed upon target for a behavior. I see nothing synthetic about it at all. Making a specification for how a CMYK press and all it entails should produce a group of color numbers is a specification and I've asked how it differs from what TR001 provided years ago. A new specification doesn't make the process it defines synthetic but maybe we need to stop here and define what we mean by a synthetic color space.
>> On Feb 27, 2015, at 1:59 AM, Graeme Gill <email@hidden> wrote:
>>
>> It's perfectly feasible to create such a space - you would just assume perfect
>> colorants and pure subtractive color mixing with some sort of dot gain curve.
Agreed, one could build such a space. Your next point is what I believe to be the reason it's not been done:
> If you sent it directly to press, you wouldn't expect terribly good color reproduction
Agreed. So Roger could create such a space, it just wouldn’t work ;-)
Andrew Rodney
http://www.digitaldog.net/
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| References: | |
| | >Re: Silly question department, Display Media White Point (From: John Lund <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: Karsten Krüger <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: G Mike Adams <email@hidden>) |
| | >RE: Silly question department, Display Media White Point (From: Roger Breton <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: G Mike Adams <email@hidden>) |
| | >RE: Silly question department, Display Media White Point (From: Roger Breton <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: G Mike Adams <email@hidden>) |
| | >RE: Silly question department, Display Media White Point (From: Roger Breton <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: Andrew Rodney <email@hidden>) |
| | >RE: Silly question department, Display Media White Point (From: Roger Breton <email@hidden>) |
| | >Re: Silly question department, Display Media White Point (From: Andrew Rodney <email@hidden>) |
| | >RE: Silly question department, Display Media White Point (From: Roger Breton <email@hidden>) |