The combination of Canon LiDE210 and SANE provides me a usable scanner on Ubuntu.
However when scanning in color, colors are NOT accurate.
Color calibration is however not so simple as I thought.
The scanner needs to have an ICM/ICC profile.
Here are some sites regarding color correction:
http://www.jingai.com/scanningguide/profiling%20slides.html
http://www.ddisoftware.com/qimage/icc.htm
A tool called Argyll can be downloaded through Synaptic.
http://www.argyllcms.com/doc/ArgyllDoc.html
http://www.argyllcms.com/doc/Scenarios.html#PS1
To calibrate a scanner you will need something to scan that is accurate in color, i.e.:
http://www.targets.coloraid.de/
http://www.silverfast.com/show/it8-targets/en.html
(which I do not have, so this is it for now. Until then I will simply use a post-processing color correction method.)
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