Hi Phill,

In GIMP 2:

Open the image you want:

Right Click on the image and select:

  Select->By Color

On the Main Toolbar there are 4 Mode Options,
 Select "Add to current selection"

 Select the varous whiteish areas you need.

 Hit Delete key.

You can also Play with the "Find Similar Colours" options - select sample 
merged and increase the threshhold.




To add a white background select the Layers (The tab with an image of 3 
layers on the main toolbar)

Click the left bottom button "New Layer"

Use the arrows to move it to the bottom.

Make sure it is high lighted

on the image - Right Click then Select->All

On main Toolbar change the Top colour to White (or whatever)

Use the Bucket Fill and click on the image.



Mike










On Wed, 17 Nov 2004 09:13, Phill Coxon wrote:
> Hi guys.
>
> Quick gimp question.
>
> I'm putting up a website with an image of my "signature" (no, not my
> real signature).
>
> I've scanned the signature and have a nice image with a white
> background.
>
> Now I want to convert the white background to transparent so that the
> signature sits cleanly on whatever colour background the website happens
> to be.
>
> So, two questions:
>
> (1) Although the scanned background is pretty good, it's still made up
> of various shades of white.
>
> How can I use gimp (or gimp-2.0) to select a colour range (pure white to
> offwhite) and remap it pure white #ffffff ?
>
> (2) Now that the background is a nice uniform white, how do I change
> that to being transparent.  I'm sure this is easy, but I'm stuffed if I
> can find an option in Gimp.
>
> Probably staring right at me somewhere.
>
> Thanks!

-- 
Linux Rocks!

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