RE: Color accurate workflows (was in search of a D50 Editing colorspace)
RE: Color accurate workflows (was in search of a D50 Editing colorspace)
- Subject: RE: Color accurate workflows (was in search of a D50 Editing colorspace)
- From: Roger Breton <email@hidden>
- Date: Sat, 06 Sep 2014 08:36:27 -0400
Peter,
Heidelberd Newcolor7000 was an application that offered direct CIE Lab editing. It was the nirvana of color. But that application is long gone.
I believe Fuji ColourKit Image Editor is still around and offers direct CIE Lab support?
<sigh…>
Under the hood, every Photoshop operation is not done with 8-bit? For the sake of simplicity, color values are displayed with integers but under the hood, my guess is that it all takes places in 16-bit. Wasn’t there a discussion that it was 32-bit? I believe the Info palette has an option to directly view 32-bit color (or 31-bit, 1 bit for sign? The details are foggy in my memory).
For what’s it worth, InDesign supports CIE Lab the entering of decimal values. They may not be retained for display In the Color palette but they are faithfully stored in the Swatches palette. I believe on could bring Swatches in Photoshop from InDesign…
Best / Roger
www.graxx.ca
From: Peter Miles [mailto:email@hidden]
Sent: 6 septembre 2014 01:04
To: Peter Miles; Roger Breton; 'ColorSync List'
Subject: Re: Color accurate workflows (was in search of a D50 Editing colorspace)
...That and because the colour changes are less 'twitchy' when moving the control point in a mid size RGB space compare with lab.
Regards
Peter
_____
From: Peter Miles < <mailto:email@hidden> email@hidden>
To: Roger Breton < <mailto:email@hidden> email@hidden>; 'ColorSync List' < <mailto:email@hidden> email@hidden>
Sent: Saturday, 6 September 2014, 16:51
Subject: Re: Color accurate workflows (was in search of a D50 Editing colorspace)
Roger wrote...
Why not directly work in Lab space?
Hi Roger
I'm not weeded to RGB.
The reason I use an RGB space is because I'm pushing pixel colour around by moving control points in curves.
A control point in the curves can only be moved with 8 bit resolution.
So from that perspective, with a mid-size RGB space, the RGB values calculated from my i1pro measurement represent a more precise location of the measured colour than do the Lab Values (when Lab isn rounded to whole numbers).
If I could enter decimal values for Lab then using a lab space directly would be much more tempting.
If theres another way I'd be keen to look at it.
Best Regards
Peter
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