David (Sunday, 05. September 2010)
> > Ok, so it looks like we have to
> > (1) rewrite I.3.1 (based on the - adapted - wikipedia article and
> >
> > the glossary entry?),
> >
> > (2) add an index entry which refers to I.3.1, and
> > (3) write a new (short and basic) glossary definition.
> >
> > Correct?
> >
> > I volunteer myself for (2).
>
> The easy one, eh? ;)
>
> I don't mind having a shot at it if no-one else bites, but again
> not for a little while, and furthermore I fear I'm not yet
> familiar enough with the GIMP. So preferably someone else will
> volunteer?
My first attempt/suggestion:
We swap the glossary entry with the Channel description of the Basic
Concepts section (and modify both texts a little bit).
This way, a user will find a detailed (and better) description of
channels where he will expect it to be (is this true?) and we
have a short overview in the glossary.
IMHO, whenever a text explains how to do something (here: how to
create a channel) it's definitely not a text for the glossary.
My current glossary entry reads:
"A channel refers to a certain component of an image.[*] For
instance, the components of an RGB image are the three primary
colors red, green, blue, and sometimes transparency (alpha).
[*] stolen from the Wikipedia article
Every channel is a grayscale image of exactly the same size as the
image and, consequently, consists of the same number of pixels.
Every pixel of this grayscale image can be regarded as a container
which can be filled with a value ranging from 0 to 255. The exact
meaning of this value depends on the type of channel, e.g. in the
RGB color model the value in the R-channel means the amount of red
which is added to the color of the different pixels; in the
selection channel, the value denotes how strongly the pixels are
selected; and in the alpha channel the values denote how opaque the
corresponding pixels are."
Still not perfect, but it seems better than current situation. At
least we should have a good starting point for further
enhancements/corrections.
(I wonder if we should move the "Mask" entry of the glossary to the
Basic Concepts too.)
Ulf
--
Daß Glaube etwas ganz anderes sei als Aberglaube,
ist unter allem Aberglauben der größte.
-- Karlheinz Deschner
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