Fwd: krita cvs with 16 bit individual color channel adjustment CMYK, etc.?

[Boudewijn Rempt]

On Monday 02 January 2006 15:50, Bart Coppens wrote:
> On Monday 02 January 2006 15:33, Boudewijn Rempt wrote:
> > I thought that we already had a color adjustment filter that worked with
> > other colorspaces than RGB, but I cannot find it anymore. Does anyone
> > know about the status of it?
>
> We had, until last week. I recall using it Friday evening, I think, and
> Sunday it was suddenly gone (including all other Adjust -> Adjust entries,
> only Variations is there)! My guess is that somebody accidentally disabled
> it in the Makefile.am?
>
> (I'm not CC'ing to lmarso at gmail.com since you didn't either, but I guess
> you'll inform him when it's fixed?)

I already told him we will fix it, but I wanted to be sure. He also had the 
following to say, where I didn't quite get what he wanted with the averaged 
color-under-mouse measurements:

On Mon, 2 Jan 2006 1:40 am, Boudewijn Rempt wrote:
> When Krita is stable again, the color adjustment won't have to go back
> to 8 bits rgb, it will work natively on all colorspaces that are backed
> by lcms -- that means rgb, cmyk, lab, grayscale in 8 and 16 bits.

A remarkable achievement.  Cinepaint sort of does that, but misses the 
subtleties of lab colorspace, where the curve tool needs effectively to 
be inverted, as its done in photoshop, to provide an accurate 
manipulation.  More important than this, a tool that provides area 
averaged color-under-mouse measurements in real time are essential to 
understand where manipulations are needed.  The latter is sorely 
lacking, to, in cinepaint.

I'm keen to engineer a linux solution to dan margolis' "lab photoshop 
color".  I'm amazed that krita is getting there first.


-- 
Boudewijn Rempt 
http://www.valdyas.org/fading/index.cgi
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://mail.kde.org/pipermail/kimageshop/attachments/20060102/7018701f/attachment.pgp