Re: Theoretical CMYK Profile "and Lch"
Re: Theoretical CMYK Profile "and Lch"
- Subject: Re: Theoretical CMYK Profile "and Lch"
- From: "Daniel Lowicki" <email@hidden>
- Date: Sun, 14 May 2006 20:00:27 +0200
**how come pressing reply never includes the list?**
Danny,
In HSB notation, any Hue (H) can have a Brightness (B) of
100! So, all greens can have the same max brightness as
all reds;
this is true for a cylindrical color model .. but hey the Lab model is a cube ;-)
My theory is that your statement has no effect on practical
work. All edits I ever made with those Photoshop sliders worked
out just as expected.
br
Daniel
email@hidden wrote:
Daniel,
Just a few words to add to what Roger said:
In HSB notation, any Hue (H) can have a Brightness (B) of
100! So, all greens can have the same max brightness as
all reds; this is enough to get the blues!
In short, the HSB notation, while better than RGB for
visualization purposes, is not truly very representative
of reality!
And similar comments to the one above and those Roger
mentioned also apply to HSL (Hue-Saturation-Lightness), or
HSV (Hue-Saturation-Value) notations.
For more info on HSB and L*C*h* you can download this pdf
http://www.babelcolor.com/download/BabelColor_Help.pdf
and look in the "Technical data/Definitions and theory"
section.
Danny Pascale
email@hidden
www.BabelColor.com
On Sun, 14 May 2006 08:51:38 +0200
"Daniel Lowicki" <email@hidden> wrote:
Guys,
excuse me .. but why are you missing LCh editing ?
I use the "hue, saturation, and brightness" sliders
instead. What's the
big difference.
Glad to learn,
Daniel
Roger Breton wrote:
How about a next version of Photoshop with Lch?
Any supporters?
Yes please! I find it's pretty darn easy to teach users
how to work
in LCH (it's pretty intuitive to learn). Then maybe we
could also
have a saturation curve in Photoshop as we had in
LinoColor.
Andrew Rodney
http://www.digitaldog.net/
Yes, Pleeeeeease Mr. Adobe!!!!!
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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