Re: a new user perspective

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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 

(I wonder if we should move the "Mask" entry of the glossary to the 
Basic Concepts too.)


Daß Glaube etwas ganz anderes sei als Aberglaube,
ist unter allem Aberglauben der größte.
		-- Karlheinz Deschner

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