[sane-devel] epson 1250 scanning dark color

[Gerhard Jaeger]

On Wednesday 06 July 2005 03:03, Olaf Meeuwissen wrote:
> "John H." <mistamaila@yahoo.com> writes:
> 
> > My epson 1250 is scanning very dark when I do color,
> > why is that?
> >
> > xsane-gimp-0.96-1
> > sane-frontends-1.0.13-2
> > sane-backends-1.0.15-9
> > xsane-0.96-1
> >
> > good color in windows.
> 
> What backend?  I'd guess plustek but this scanner is also supported by
> the epkowa backend.

He,he - don't put the blame on me ;)

Well - of course you might wan't to check that with the epkowa backend, you
might also want to tweak the gamma options in the plustek.conf file:

#
# for adjusting the default gamma values
# (can also be set via frontend)
option redGamma         1.5
option greenGamma       1.5
option blueGamma        1.5
option grayGamma        1.5

Default is 1.0 for this device, which means use a linear map, 1.5 should
increase the brightness.

Hope this helps.

Ciao,
Gerhard