[Gimp-user] How do I effectively use a "blue screen" scanning method with gimp

[Chris Mohler]

On Sat, Jun 13, 2009 at 1:08 PM, Jay Smith<jay at jaysmith.com> wrote:
[big snip]
> So....
>
> I am hoping for suggestions as to a) how to avoid the color shadow of
> using a colored background and b) if it cannot be avoided, how to fix it
> in gimp without a lot of messing around and/or other color distortion
> problems.

Have you tried putting something heavy on the "colored background" (I
tend to use a thick book)?  This may reduce or eliminate the shadow.

Have you tried reducing the wand (or select by color) tool's threshold
when selecting the black background?  I would guess that the postmark
color and the background color differ at least slightly.

A couple of the raw scans of the stamps might be useful for analysis.

Chris