-Jones
Subject: Re: [Darktable-users] RGB tone curve
To: darktable-users@lists.sourceforge.net
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On Thursday, January 22, 2015 23:19 Ariel Kanterewicz wrote:
> Reading through the thread, it loo
On Fri, Jan 23, 2015 at 6:19 AM, Chris Siebenmann
wrote:
> > Manipulating the tone curves is still (for me) not optimal. I find
> > that making complex curves is rather like pushing a piece of string
> > .. fragile to put it mildly. Rawstudio was for me a winner in that
> > department in that it
> Manipulating the tone curves is still (for me) not optimal. I find
> that making complex curves is rather like pushing a piece of string
> .. fragile to put it mildly. Rawstudio was for me a winner in that
> department in that it allowed me to do some really fine (and complex)
> adjustment .. eas
On Thursday, January 22, 2015 23:19 Ariel Kanterewicz wrote:
> Reading through the thread, it looks like the general idea is that RGB
> curves are pointless or redundant... but if there isn't an equivalent way
> of manipulating the image, it's just another (fairly standard) tool, a
> different way
I vaguely remember a cross processing simulation preset in Bibble 5 that
did some funky stuff with the RGB curves, that's a use case.
Reading through the thread, it looks like the general idea is that RGB
curves are pointless or redundant... but if there isn't an equivalent way
of manipulating the
> Implicitly comparing the outfit of your wife to another woman's one is
> almost always a bad idea.
:-) I was not comparing, just suggesting :-)
> Coming back to RGB curves: I think until someone presents a specific
> example the benefits will be very vague at best.
Maybe we could get hold
Am Donnerstag, den 22.01.2015, 08:40 +0100 schrieb KOVÁCS István:
> When I tell my wife: 'Look at that girl's dress, isn't it pretty?', the
> intention is not to shame her, it's to suggest maybe we should buy one like
> that, if she likes it too. Then she may point it out that she doesn't like
> i
On 22 Jan 2015 00:29, "Markus Jung" wrote:
>
> > That may be so. It'd be nice to have a tutorial, but lacking the
> > skill, I won't be able to create one. :-(
>
> What is your problem?
My problem is ignorance - on my part. Darktable has lots of powerful tools,
and I have been using dt for a much
> OK ... I am guessing that I need to go into the blend mode and then partially
> or totally disable the chroma setting using a parametric mask.
"manual" mode means no chroma scaling at all. If you want more than "on"
and "off, you need to use blending and maybe masks, yes.
> This infers
> tha
On Thursday, January 22, 2015 00:29 Markus Jung wrote:
> > Interesting ... yes the effect is seen very much in the reds but ...
> > "scale chrome" appears to be always enabled, how do I change that?
>
> You have seen the small triangle at the right hand side? There is a menu
> hidden behind ;)
>
> Interesting ... yes the effect is seen very much in the reds but ...
> "scale chrome" appears to be always enabled, how do I change that?
You have seen the small triangle at the right hand side? There is a menu
hidden behind ;)
Regards,
Markus
--
> That may be so. It'd be nice to have a tutorial, but lacking the
> skill, I won't be able to create one. :-(
What is your problem?
Section 12 of the RT wiki describes how you can modify the tone curve.
The user interface of dt is a bit different and does not deploy the more
restricted variants,
On Wednesday, January 21, 2015 23:54 Markus Jung wrote:
> > I am assuming that switching from 'automatic' to 'manual' on the tone
> > curve is changing the process from RGB to Lab ... a significant diference
> > can be seen when doing this.
> >
> > My normal expectation with tone-curve processing
Markus,
> What i read there is just a combination of things you can easily do with
> darktable, and drawbacks of using an RGB curve.
That may be so. It'd be nice to have a tutorial, but lacking the
skill, I won't be able to create one. :-(
Kofa
--
> I am assuming that switching from 'automatic' to 'manual' on the tone curve
> is
> changing the process from RGB to Lab ... a significant diference can be seen
> when doing this.
>
> My normal expectation with tone-curve processing with other systems was that
> it only adjusted the luminesce
On Wednesday, January 21, 2015 23:15 Markus Jung wrote:
> Am 21.01.2015 um 23:09 schrieb KOVÁCS István:
> > You can read about the potential uses and flexibility here:
> > http://rawpedia.rawtherapee.com
>
> What i read there is just a combination of things you can easily do with
> darktable, and
Am 21.01.2015 um 23:09 schrieb KOVÁCS István:
> You can read about the potential uses and flexibility here:
> http://rawpedia.rawtherapee.com
What i read there is just a combination of things you can easily do with
darktable, and drawbacks of using an RGB curve.
I can not see any benefit, sorry.
You can read about the potential uses and flexibility here:
http://rawpedia.rawtherapee.com
Follow these links (can't give you direct links, seems to be dynamic IP):
1.3.1 Exposure Tab -> Exposure -> 12 Tone Curves and 13 Curve Mode
https://code.google.com/p/rawtherapee/issues/detail?id=1529
You do
Am Montag, den 19.01.2015, 11:37 -0300 schrieb Francisco Cribari:
> Would it be feasible (and desirable) to give Darktable users a choice
> between the existing Lab tone curve and an RGB tone curve? An RGB tone
> curve would make it easier (I believe) to adapt existing Lightroom
> presets/styles t
Would it be feasible (and desirable) to give Darktable users a choice
between the existing Lab tone curve and an RGB tone curve? An RGB tone
curve would make it easier (I believe) to adapt existing Lightroom
presets/styles to Darktable. Best, Francisco
--
Francisco Cribari - http://about.me/criba
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