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Alpha channel and pixel transparency value

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Alpha channel and pixel transparency value DJ 16 Apr 02:20
  Alpha channel and pixel transparency value David Gowers 16 Apr 02:25
1857760468.20090415195816@y... 07 Oct 20:20
  Alpha channel and pixel transparency value David Gowers 16 Apr 03:20
DJ
2009-04-16 02:20:55 UTC (almost 16 years ago)

Alpha channel and pixel transparency value

Hi Gimp-user,

I'd like to know the transparency value of a pixel in Gimp. In PSP, when you run the cursor over a pixel it'll tell you the RGB and the alpha percentage. Can I get this information in Gimp?

Thank you.

David Gowers
2009-04-16 02:25:59 UTC (almost 16 years ago)

Alpha channel and pixel transparency value

On Thu, Apr 16, 2009 at 9:50 AM, DJ wrote:

Hi Gimp-user,

I'd like to know the transparency value of a pixel in Gimp. In PSP, when you run the cursor over a pixel it'll tell you the RGB and the alpha percentage.  Can I get this information in Gimp?

Have you looked at docs.gimp.org to find out the answer to some of these questions?

Anyway, the 'Cursor' dockable does this.

David

David Gowers
2009-04-16 03:20:36 UTC (almost 16 years ago)

Alpha channel and pixel transparency value

Hi DJ,

On Thu, Apr 16, 2009 at 10:28 AM, DJ wrote:

It may not appear like it, but yeh.  Sorry.

I'm hitting PF1 all the time to get specific doc too.

I do a google site search for terms too.

I didn't quite know what you meant by "Cursor" dockable. So I checked  Windows -> Dockable Dialogs, and didn't see that terminology. A friend

Eh, maybe it is called 'Pointer' dockable. I don't use GIMP in the English language, but Lojban.
The menu item in question appears after Undo History and before Sample Points in the menu.

http://docs.gimp.org/en/gimp-windows-show-dock.html http://docs.gimp.org/en/gimp-pointer-info-dialog.html

I noticed that pressing Shift+F1 over the 'Pointer' menu item only gives the 'EEK! Missing help' page. This is probably a bug in the docs, since the relevant page does actually exist.

 I scrolled across the image. That checkbox option eluded me...

Such an option is not available in GIMP. If you would like it, I suggest making a mockup and submitting it to gimp-brainstorm.blogspot.com.
However, the Pointer dockable works fine for me for this purpose, on the rare occasions I need it.

Do you have a good reason for replying only to me rather than the list? It makes the thread on the mailing list appear disjointed. Here, I use 'Reply to All' to reply to messages from mailing lists, and this is effective.

David