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+--- Thread: Question about selection tools (/Thread-Question-about-selection-tools)
Question about selection tools - rinaldop - 04-28-2024
Do they stack? For example I am doing a Color Select and it is working perfectly but I do not want it to select the color throughout the entire image. I only want to select the color on a piece of the image. I tried using Rectangle Select to select the portion of the image that I am interested in and then I tried to use Color Select just in the previously selected area but instead the color was selected throughout the image.
I tried using Select Fuzzy but that still selected too much of the image. There must be a way to have Select Color look for the selected color in just a part of the image.
For example in the image below I want to turn the blocks of green that form a ( and turn them blank. I have gotten SO CLOSE but either a bit too much or a bit too little gets selected.
[attachment=11776]
Here is my best attempt but too much of the blocks remain.
[attachment=11777]
Here too much of the image is removed.
[attachment=11778]
It would be nice to have the Select Color tool just look at a small area surrounding the blocks.
Thanks
RE: Question about selection tools - rich2005 - 04-28-2024
(04-28-2024, 10:03 AM)rinaldop Wrote: Do they stack? For example I am doing a Color Select and it is working perfectly but I do not want it to select the color throughout the entire image.
..snip..
For example in the image below I want to turn the blocks of green that form a ( and turn them blank. I have gotten SO CLOSE but either a bit too much or a bit too little gets selected.
Get to grips with the various selection modes: see: https://docs.gimp.org/en/gimp-tools-selection.html
[attachment=11779]
(1) I can make a rough selection using the Free select tool (in replace mode which is often default)
(2) Moving to the Color select tool, put it in Intersect mode.
(3) To get a more inclusive selection, increase the threshold value (value depends on image, experiment)
(4) Click on square to make the selecion
Then you can clear the selection.
RE: Question about selection tools - rinaldop - 04-28-2024
Ah ha! Intersect mode was the key!
I read the docs on Select Color but I missed that somehow.
Thanks!
RE: Question about selection tools - PixLab - 04-28-2024
Another way to do it.
duplicate then go to Colors > Color to Alpha,
[attachment=11780]
Clean a bit with the Eraser Tool, then roughly select all around those green at once with the Free Select Tool, then CtrL+C (copy), then Ctrl+V (paste), this action will select separately each square, then commit the floating selection by going to Layer > To New layer
[attachment=11781]
Put that new layer in difference mode, and blur it a little bit with Filters > Blur > Gaussian Blur...
[attachment=11782]