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Deleting selection from image after saving to channel

Sep 10, 2013, 17:18
Post: #1
Deleting selection from image after saving to channel
I made a complicated selection, which I saved to a channel. Then I inverted the selection and tried to delete the inverse (hopefully to transparency, but deleting to a background color would be better than not deleting at all). However, nothing happens when I press the delete key, or when I select "Clear" from the edit menu. Trying to use the Cut command doesn't work, either.

After deselecting, I can get the selection back through the channels dock, by right-clicking and then choosing "Channel to selection" or "Add to selection." It appear to replace the selection from the channel properly. I just can't delete anything.
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Sep 10, 2013, 22:47
Post: #2
RE: Deleting selection from image after saving to channel
(Sep 10, 2013 19:48)ofnuts Wrote:  To check if you have a selection use the quickmask
Quickmask does show my selection in red.

Quote:Otherwise, is there an alpha channel on the layer (Layer/Transparency/Add alpha channel)?
I don't know. I don't think so. I can't select "Add alpha channel" from Layer > Transparency. The option is grayed out.

Okay, I see what may be the problem. When I press the delete key, the preview of the selection in the Channels dock turns blank, and nothing happens to the image or the selection. I'm not sure if it still erases the channel when I close the Channels window, but it definitely still refuses to delete the selection.
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Sep 11, 2013, 01:00
Post: #3
RE: Deleting selection from image after saving to channel
(Sep 11, 2013 00:06)ofnuts Wrote:  Aw, yes... the delete works on the current "drawable" which is either a channel or a layer. Saving the selection to a channel make that channel the current "drawable". Go back to the Layers list, select your layer, and you should be in business...
Yes! Thank you, very much.
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