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:
A tool called Argyll can be downloaded through Synaptic.
To calibrate a scanner you will need something to scan that is accurate in color, i.e.:
(which I do not have, so this is it for now. Until then I will simply use a post-processing color correction method.)