[prevod gnoma] Како превести ово? ...у НЛRaw-у

[Miloš Popović]

Проблем ми је Display i Output intent, kao i razni modovi. Evo šta kaže na zvaničnoj adresi НЛRaw-a.


Rendering intents

The different intents options specify how out of gamut colors will be handled. Display intent has
an extra option - Disable soft proofing. When using this option, the output profile is ignored for
the rendering of the preview image. The preview image is rendered in the display profile color
space using the output intent.

The following explaination of the various transformation intents is copied from the Little CMS
documentation:

It's out of scope of this document to define the exact meaning
of rendering intents. I will try to make a quick explanation
here, but often the meaning of intents depends on the profile
manufacturer.

INTENT_PERCEPTUAL:

             Hue hopefully maintained (but not required),
             lightness and saturation sacrificed to maintain
             the perceived color. White point changed to
             result in neutral grays. Intended for images.

             In lcms: Default intent of profiles is used.

INTENT_RELATIVE_COLORIMETRIC:

             Within and outside gamut; same as Absolute
             Colorimetric. White point changed to result in
             neutral grays.

             In lcms: If adequate table is present in profile,
             then, it is used. Else reverts to perceptual
             intent.

INTENT_SATURATION:

             Hue and saturation maintained with lightness
             sacrificed to maintain saturation. White point
             changed to result in neutral grays. Intended for
             business graphics (make it colorful charts,
             graphs, overheads, ...)

             In lcms: If adequate table is present in profile,
             then, it is used. Else reverts to perceptual
             intent.

INTENT_ABSOLUTE_COLORIMETRIC:

             Within the destination device gamut; hue,
             lightness and saturation are maintained. Outside
             the gamut; hue and lightness are maintained,
             saturation is sacrificed. White point for source
             and destination; unchanged. Intended for spot
             colors (Pantone, TruMatch, logo colors, ...)

             In lcms: relative colorimetric intent is used
             with undoing of chromatic adaptation.

Not all profiles support all intents, there is a function
for inquiring which intents are really supported, but if you
specify an intent that the profile doesn't handle, lcms will
select default intent instead. Usually perceptual one. This
will force things to "look nice", even if the intent is not
the one really desired.

__________________________
Miloš Popović, 
Gentoo GNU/Linux
Mail: gpopac на gmail.com
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