On 11/03/2016 05:59 PM, marti.ma...@littlecms.com wrote:
>
>
> Hi Elle,
>
> You are right, gamut check was not intended to work in unbounded mode
> and also, due to the way it works, it needs a space perceptually uniform
> to perform good. This is because gamut check uses a LUT driven by CIE
> L*a*
On 11/03/2016 05:59 PM, marti.ma...@littlecms.com wrote:
> You are right, gamut check was not intended to work in unbounded mode
> and also, due to the way it works, it needs a space perceptually uniform
> to perform good. This is because gamut check uses a LUT driven by CIE
> L*a*b* to hold the di
Hi Elle,
You are right, gamut check was not intended to work in unbounded mode
and also, due to the way it works, it needs a space perceptually
uniform to perform good. This is because gamut check uses a LUT driven
by CIE L*a*b* to hold the distance of each color to gamut boundary.
Works
On 08/10/2016 06:27 AM, Elle Stone wrote:
> Hi Marti and all,
>
> When soft proofing with high bit depth GIMP, which uses LCMS, the gamut
> check isn't reliable. I've confirmed some of the issues using tificc at
> the command line, so it's not GIMP code per se.
>
> 1. When using the gamut check, wh
Am Mittwoch, 17. August 2016, 13:32:51 CEST schrieb Marti Maria:
> > don't you just have to introduce a range model of the media being proofed
>
> ?
>
> Hi Graeme, neat idea. And while I was trying to implement that, I found a
> solution that seems simpler to me.
>
> What about a function like t
e agosto de 2016 2:23
To: LCMS mailing list
Subject: Re: [Lcms-user] Soft proofing problems when the destination profile
supports unbounded profile conversions
Marti Maria wrote:
> Anybody else on that? I would like to know what lcms users think and
> eventually modify the behavior for nex
Marti Maria wrote:
> Anybody else on that? I would like to know what lcms users think and
> eventually modify the behavior for next release.
Hi Marti,
don't you just have to introduce a range model
of the media being proofed ?
For (say) printed media, the corresponding model would clip
On 08/11/2016 06:31 AM, Marti Maria wrote:
>
> Hello Elle et al,
>
> I've been considering the case and here are some thoughts.
>
> I understand that when softproofing some "perfect" profiles would be nice
> to return gamut clip, no matter the profile does not apply this clip in
> unbounded mode.
Hello Elle et al,
I've been considering the case and here are some thoughts.
I understand that when softproofing some "perfect" profiles would be nice
to return gamut clip, no matter the profile does not apply this clip in
unbounded mode.
The amount of changes in lcms code to implement this i
On 08/10/2016 06:55 AM, Tobias Ellinghaus wrote:
> That's exactly what I asked for a while ago. It seems that Marti isn't
> convinced of that idea. :-(
>
> https://sourceforge.net/p/lcms/mailman/message/35215540/
Hi Tobias, I was hoping maybe some additional pleading and begging might
help :) .
Am Mittwoch, 10. August 2016, 06:23:51 CEST schrieb Elle Stone:
[...]
>Would it be possible to put in a flag for soft proofing that says
> "after transforming to the destination profile clip the channel values
> to fit within the bounded color gamut of the destination color space,
> even
Hello Udi,
you are right a mixing of profiles in a chain together with a proofing
profile has not an own function. Nethertheless there are some
workarounds possible.
You may basically create a cmsCreateMultiprofileTransform, convert to a
device link with cmsTransform2DeviceLink and use this in
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