Lorenzo,
there are various aproaches to scan along the gamut border.
First of all the AToB1Tag and BToA1Tag's should contain relyable
information about the real shape of a device, as they shall contain the
closest match to the colour measurements by definition. Other tables are
allowed to leav
Kai-Uwe Behrmann wrote:
> As the CMM is responsible for handling the gamut, it can be used itself to
> show it. lcms has the cmsFLAGS_NOTPRECALC option for highest precision.
> Otherwise you have to do the low level stuff yourself like handling
> various CLUT types or matrix profiles.
>
> For ac
I am currently using LCMS for ICC profile reading and color correction.
All is fine.
However, for speed purposes, I am now trying to use LCMS just as an ICC
profile reader, leaving the color correction to be done on the gfx card
with Cg shaders.
Therefore, I am looking into LCMS api to see if it
Am 05.03.07, 08:15 -0300 schrieb Lorenzo Ridolfi:
> Is it possible to open an output profile as input in a transformation
> using littlecms ? As I'm plan to scan the B2A1 table, the output profile
> will be the first one in my workflow and I'll use the internal Lab
> profile as the second one..
The most obvious way would be to create a transform with lcms in the usual
way. You may use proofings multiprofile transforms with all bells and
whistles and convert into a device link. This profile should include a 3D
LUT to use later, possibly after some conversions, in your cg shader.
HDR is
Kai-Uwe Behrmann wrote:
> The most obvious way would be to create a transform with lcms in the usual
> way. You may use proofings multiprofile transforms with all bells and
> whistles and convert into a device link. This profile should include a 3D
> LUT to use later, possibly after some convers
Original-Nachricht
Datum: Mon, 5 Mar 2007 13:35:51 +0100 (CET)
Von: Kai-Uwe Behrmann <[EMAIL PROTECTED]>
An: Lorenzo Ridolfi <[EMAIL PROTECTED]>
CC: Lcms Liste
Betreff: Re: [Lcms-user] Transforming colors with A2B1 table
> Sometimes a profile comes with just one direction in it
Am 05.03.07, 14:41 -0300 schrieb gga:
> > Kai-Uwe Behrmann wrote:
> > HDR is only possibly with matrix profiles, best without gamma and outside
> > the above described way.
> Yes, that's one reason for me to wanting to avoid doing lcms transforms
> and needing the data raw and not wanting lcms
In the cmsSetLanguage() function, The LanguageCode parameter is an
integer.
When directed to the LanguageCode page for ISO-639:
http://www.lcweb.loc.gov/standards/iso639-2/iso639jac.html
I cannot seem to find the Numeric-3 codes for the language. I can
only see
Ascii-2 or Ascii-3.
Where
It's an output profile.
Best regards,
Lorenzo
Gerhard Fürnkranz wrote:
> Original-Nachricht
> Datum: Mon, 5 Mar 2007 13:35:51 +0100 (CET)
> Von: Kai-Uwe Behrmann <[EMAIL PROTECTED]>
> An: Lorenzo Ridolfi <[EMAIL PROTECTED]>
> CC: Lcms Liste
> Betreff: Re: [Lcms-user] Transformi
Am 05.03.07, 19:03 +0100 schrieb "Gerhard Fürnkranz":
> Von: Kai-Uwe Behrmann <[EMAIL PROTECTED]>
>
> > Sometimes a profile comes with just one direction in its tables. Then
> > possibly you can't go back. I saw some scanner profiles like this.
>
> Input profiles generally support only the devi
Kai-Uwe Behrmann wrote:
>>> Sometimes a profile comes with just one direction in its tables. Then
>>> possibly you can't go back. I saw some scanner profiles like this.
>>>
>> Input profiles generally support only the device -> PCS (A2B) direction.
>>
>
> Good, they must contain A2B0.
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