Hello all,
I just committed the new device specific option 'gamma' to git.
gamma can be used as command line parameter e.g. for scanimage.
'--gamma auto' uses '#define AUTO_GAMMA 2.2' from pixma.c.
The range of gamma is between 0.3 and 5.
Xsane overrides the gamma option with a complete gamma
Hello all,
Scanning lineart images with scanimage can be a little bit tricky. If
the scanner has problems with the default gamma exponents from pixma.c
or the used subdriver (e.g. pixma_mp810.c)) you should create a gamma
table with gamm4scanimage and use it with scanimage. This is
