[sane-devel] Blank threshold adjustable?

[Werner Holtfreter]

Hello,

I'm using Ubuntu10.10, sane1.0.14-9 (thanks to Robert Ancell for 
PPA) and Jeffrey Ratcliffe's great gscan2pdf0.9.31.

If I scan in colour, white paper is light grey. It could be nice to 
see the exact colour of white, but it is not nice for normal use. 
(And it could make greater a compressed file.)

gscan2pdf --> Preferences --> Blank threshold   did not make a 
difference. I need help to adjust the white level.
-- 
Viele Grüße
Werner Holtfreter