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erase background using free select tool?
http://gimpchat.com/viewtopic.php?f=8&t=19482		 Page 1 of 1
Author:  iti [ Fri Jul 09, 2021 12:39 pm ]
Post subject:  erase background using free select tool?
GIMP Version: 2.8.14
Operating System: Windows
GIMP Experience: Basic Level


I have an image from the paintbrush, it has a light color in the background i am trying to delete to transparent. I can erase to transparent, but every time i use the the free select tool, i think thats what its called, it selects everything not just the background color. yes i know its user error, so what do i need to do?

also using the newest gimp version.

Attachments:
TEST.xcf [988.63 KiB]
Downloaded 138 times
Author:  PixLab [ Fri Jul 09, 2021 1:46 pm ]
Post subject:  Re: erase background using free select tool?
First deselect all what you have selected > Select > None
Then let's start
Go to the channel tab (near layer) > Drag the blue channel and drop it on the canvas
Go back to the Layer tab > Add alpha channel to that new layer
Colors > Threshold
Colors > Color to alpha (white by default)
Alpha to Selection
Go back to the bottom layer > Add mask from selection, deselect the top layer (no need anymore)
done
Attachment:
TEST.xcf [1.15 MiB]
Downloaded 150 times
Author:  iti [ Fri Jul 09, 2021 2:59 pm ]
Post subject:  Re: erase background using free select tool?
Attachment:
thank you not there.JPG
thank you not there.JPG [ 83.91 KiB | Viewed 4505 times ]
PixLab wrote:
First deselect all what you have selected > Select > None
Then let's start
Go to the channel tab (near layer) > Drag the blue channel and drop it on the canvas
Go back to the Layer tab > Add alpha channel to that new layer
Colors > Threshold
Colors > Color to alpha (white by default)
Alpha to Selection
Go back to the bottom layer > Add mask from selection, deselect the top layer (no need anymore)
done
Attachment:
The attachment TEST.xcf is no longer available


OH I GET IT! LOL, THANK YOU I JUST NEEDED TO CHECK "FROM SELECTION" WOW :tyspin :tyspin :tyspin
First thank you so much and so fast! ok, on the last step, i dont have that option in my list:
Author:  PixLab [ Fri Jul 09, 2021 11:00 pm ]
Post subject:  Re: erase background using free select tool?
i dont have that option in my list: Yes you have, but wrong list (although you have it in your list, see screenshot below mine) :mrgreen:

Click on the icon number 1 (add a Mask in layer dock, window dialogue opens)
Then select number 2 (from selection)

Attachment:
screenshot_20210710-115528.png
screenshot_20210710-115528.png [ 120.58 KiB | Viewed 4459 times ]


And in your list :hehe :hehe

Attachment:
screenshot_20210710-151532.png
screenshot_20210710-151532.png [ 293.79 KiB | Viewed 4446 times ]
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