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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