Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-14 Thread Øyvind Kolås
On Mon, Feb 15, 2016 at 12:33 AM, Elle Stone wrote: > This page briefly talks about color appearance models in more down-to-earth > terms: http://www.rit-mcsl.org/fairchild/WhyIsColor/Questions/4-8.html > > An internet search on terms like Color appearance model,

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-14 Thread Partha Bagchi
First hit when you google: http://www.colourphil.co.uk/lab_lch_colour_space.shtml On Sun, Feb 14, 2016 at 6:33 PM, Elle Stone wrote: > On 02/14/2016 03:56 PM, Sven Claussner wrote: > >> Hi, >> >> @Elle: you are speaking here of the JCH color model (or space) and

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-14 Thread Elle Stone
On 02/14/2016 03:56 PM, Sven Claussner wrote: Hi, @Elle: you are speaking here of the JCH color model (or space) and mentioned on your website [1] that JAB and JCH have outdated LAB and LCH (which are often considered the high end image editing color spaces/models). Searching a while for more

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-14 Thread Sven Claussner
Hi, @Elle: you are speaking here of the JCH color model (or space) and mentioned on your website [1] that JAB and JCH have outdated LAB and LCH (which are often considered the high end image editing color spaces/models). Searching a while for more information about JCH I found only very few

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-14 Thread Elle Stone
I received an email complaining that it was not true that as located on the LCH color wheel, sRGB Blue was blatantly violet, sRGB Red was on the orange side of red, sRGB Green was on the yellow side of green, and sRGB Yellow as on the green side of yellow. There is a sliver of truth in the

[Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-07 Thread Elle Stone
GIMP's new LCH blend modes are wonderful. But trying to use these new blend modes without the proper supporting tools is sort of like being given a new Aston-Martin with a 35-mile-per-hour governor on the engine. To make the LCH blend modes truly useful GIMP needs: * an LCH Hue-Chroma tool. *

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-07 Thread Alexandre Prokoudine
On Sun, Feb 7, 2016 at 10:39 PM, Elle Stone wrote: > GIMP's new LCH blend modes are wonderful. But trying to use these new blend > modes without the proper supporting tools is sort of like being given a new > Aston-Martin with a 35-mile-per-hour governor on the engine. > > To make the LCH blend

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-07 Thread Elle Stone
On 02/07/2016 06:06 PM, Alexandre Prokoudine wrote: Personally, I find darktable's Color Zones module [1] a far better alternative. It's more flexible, for instance. I don't mean any disrespect to you or to darktable. That looks like a nice tool built on top of LCH. Personally I'd probably

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-07 Thread Alexandre Prokoudine
On Mon, Feb 8, 2016 at 2:19 AM, Elle Stone wrote: > I don't mean any disrespect to you or to darktable. That looks like a nice > tool built on top of LCH. Personally I'd probably never use it, but that's a > matter of editing style. > > But in what universe is that tool more flexible than giving

Re: [Gimp-developer] Adding better LCH support to GIMP 2.10

2016-02-07 Thread Alexandre Prokoudine
On Mon, Feb 8, 2016 at 2:40 AM, Elle Stone wrote: > On 02/07/2016 06:28 PM, Alexandre Prokoudine wrote: >> >> I_wasn't even referring_ to LCH-based blend modes in the first place. > > > Hmm, my post was about LCH blend modes and how to be truly useful the user >