On Monday 18 April 2005 19:12, NM Lists wrote: >=20 > No idea? >=20 > Le samedi 09 avril 2005 =C3=A0 01:54 +0200, NM Lists a =C3=A9crit : > > Hi all, > >=20 > > When I scan through sane+xsane, the images on my Canon Lide20 show a > > calibration problem; the left side of the image is much clearer than the > > right side. However, with the Canon drivers on Windows, after having hit > > the "calibrate" button, said driver performs corrections so that such > > artifacts disappear. > >=20 > > Here's an example, a scan of a plain grid paper with some handwriting on > > it: > >=20 > > Windows driver: http://maman.monnet.biz/~nico/xsane/Scan1.JPG > > Sane (xsane through gimp): > > http://maman.monnet.biz/~nico/xsane/result_xsane.jpg > >=20 > > I looked hard but could'nt find a way to get sane to calibrate; as far > > as I can tell, "calibration" in the config files refer merely to > > page-wide adjustments (gamma, contrast, luminosity ..). In this case, it > > needs to be done on a pixel column basis. > >=20 > > Any idea on how to solve this? > >=20 > > Thanks a lot! > >=20 Sorry for not responding! Currently I really don't have an idea, but it sho= uld be a problem of the fine calibration... I'll do some investigations on that.
Gerhard
