[sane-devel] Blue cast ...

[Ulrich Deiters]

There are standard "colour targets" available from photo suppliers. The
one I am using is called a Q70 card (I think) and is from Kodak. We have
been using the Pixel!FX scanner software (by Mentalix), and it provides
a calibration routine against that colour target.

It might be a good idea to build a similar calibration routine into
the SANE frontends. Scanner lamps do age, and the standard calibration
against a black+white portion of the scanner casing does not get rid of
discolorations.

Regards,

Ulrich Deiters