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Grokking The Gimp
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3.3.10 The Save to Channel Function

Channels were introduced in Section  2.2. As will be discussed in greater detail in Section  4.1, channels can be used to store selections. This is an extremely useful feature of the GIMP because it allows you to save your selections, to reuse them in the current image or in others, and to edit them with the masking utilities (more on this in Chapter  4). The operation of saving a selection to a channel is performed with the Save to Channel function, found in the Image:Select menu.

Figure  3.17(a)

  
Figure 3.17: Saving a Selection to a Channel
Figure 3.17

illustrates an image with a selection, and Figure  3.17(b) shows the Channels dialog after applying the function Save to Channel. The Channels dialog for an image is displayed by typing C-l in the image window to bring up the Layers & Channels window and clicking on the Channels tab.

It can be seen in Figure  3.17(b) that, other than the usual Red, Green, and Blue channels usually found in the Channels dialog, there is a channel named Selection Mask Copy. This channel shows a thumbnail of the mask representing the selection. Much more on the subject of masks and selections is discussed in Chapter  4. This is a very powerful feature of the GIMP. Check it out!

Grokking The Gimp
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