Re: [Gimp-user] Second try at Re: select region inside a rectangle

2009-02-03 Thread Adrian Dusa
Thanks very much to everyone, I have a great experience learning new tricks :)
I am posting at quite a few lists, and this one is one of the most helpful and 
friendly.
Cudos to you all,
Adrian

On Monday 02 February 2009, Noel Stoutenburg wrote:
 Noel Stoutenburg wrote:
  Adrian Dusa wrote:
  I'm a Gimp newbie, using it for a long time but at an amateur level.
 
  I have the following (hopefully simple) problem: given two rectangles
  with a common border, is there a way to select the region *inside* one
  rectangle (to fill it with another color), without affecting the
  contents of the other rectangle?

 The steps I outlined work for your attached image of two white
 rectangles surrounded by black lines. Depending upon the details of the
 actual images with which you are working, you might be able to make it
 work with more or fewer steps, but the principle should still hold.

 ns
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Adrian Dusa
Romanian Social Data Archive
1, Schitu Magureanu Bd.
050025 Bucharest sector 5
Romania
Tel.:+40 21 3126618 \
 +40 21 3120210 / int.101
Fax: +40 21 3158391

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[Gimp-user] Second try at Re: select region inside a rectangle

2009-02-02 Thread Noel Stoutenburg
Adrian Dusa wrote:

 I'm a Gimp newbie, using it for a long time but at an amateur level.

 I have the following (hopefully simple) problem: given two rectangles 
 with a common border, is there a way to select the region *inside* one 
 rectangle (to fill it with another color), without affecting the 
 contents of the other rectangle?

I left a couple steps out of the one I sent privately, but this one is, 
(I think) more elegant anyway.

1) Add an alpha channel to the image.

2) Select the border using the select by color tool.

3). Cut out the border, paste it into a new layer, and hide the new layer.

4). In the base layer, invert the selection, using Select  Invert.

5). Choose your color, and fill the desired rectangle.

6)  Unhide the new layer, and Merge the layers together.

7)  flatten image.

ns


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Re: [Gimp-user] Second try at Re: select region inside a rectangle

2009-02-02 Thread Noel Stoutenburg
Noel Stoutenburg wrote:
 Adrian Dusa wrote:
   
 I'm a Gimp newbie, using it for a long time but at an amateur level.

 I have the following (hopefully simple) problem: given two rectangles 
 with a common border, is there a way to select the region *inside* one 
 rectangle (to fill it with another color), without affecting the 
 contents of the other rectangle?
The steps I outlined work for your attached image of two white 
rectangles surrounded by black lines. Depending upon the details of the 
actual images with which you are working, you might be able to make it 
work with more or fewer steps, but the principle should still hold.

ns
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