Re: [Gimp-user] Gimp newbie trying to get a job done.


I have been burning brain cells on this for a while.  I do have one final question.  Like in the case where 
there was green in all sorts of places, how could I go and change all the green areas to any color that I 
want, in only a couple of clicks?

Brent Shifley
AWIN Support

Arkansas Wireless Information Network (AWIN)
AWIN Operations arkansas gov

-----Original Message-----
From: Gary Aitken [mailto:gimp dreamchaser org] 
Sent: Wednesday, January 25, 2012 2:40 PM
To: Brent Shifley
Cc: Seth Burgess; Stefan Maerz; gimp-user-list gnome org
Subject: Re: [Gimp-user] Gimp newbie trying to get a job done.

Hi Brent,

This is pretty simple in terms of getting the selected area with this particular image:

Load the image into gimp.
Choose the color selection tool.
Set Threshold to 30
Click on the darker green area.
At least for your sample map, that got everything.  Note that the color on your sample map is not uniform, 
which is why the threshold has to be upped from the default (15) to 30.  If it doesn't get everything, start 
over (undo the last operation or exit and start over), up the threshold some more and click on missing areas 
until you get them all.  This works relatively pain-free because there is no similar green anywhere in the 

Edit/Copy to copy the selected area.
Select/None to deselect everything

   Click to expand "Advanced Options"
Set "Fill with" to transparency
   You should have just the green areas

Close the window containing the original image

If you don't have the layers dialog open, bring it up.
You should see a "Floating Selection"
Click the anchor button along the bottom (next to the trashcan) to anchor the pasted stuff into the 


On 1/25/2012 11:26 AM, Brent Shifley wrote:
Here is the url to the file:

This is actually a much simpler graphic than what I would normally be 
using, but you get the idea. In as few clicks as possible, I just want 
the green areas, and want the rest of the graphics transparent.

Brent Shifley

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