On Wed, 2004-11-17 at 09:13 +1300, Phill Coxon wrote:
> (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 ?
Use the Select By Color tool (it looks like a finger pointing at one of
three coloured squares, or select Selectâ By Color). To select a range
of colours, alter the Threshold for the tool. You may need to open the
Tool Option dialog (Fileâ Dialogsâ Tool Options)
> (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.
1. Select all the background.
2. Invert the selection (Selectâ Invert, or Control-I) so only the
foreground is selected.
3. Cut the selection (Control-X, or Editâ Cut).
4. Paste the foreground on a new layer by
1. Pasting (Control-V, or Editâ Paste) and
2. Clicking New Layer in the Layer, Channels, and Paths
dialog.
5. Hide the background layer by selecting the Eye icon next to the
layer.
--
Michael JasonSmith http://www.ldots.org/
