On Saturday 09 April 2005 01:54, NM Lists wrote: > Hi all, > > 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. > > Here's an example, a scan of a plain grid paper with some handwriting on > it: > > Windows driver: http://maman.monnet.biz/~nico/xsane/Scan1.JPG > Sane (xsane through gimp): > http://maman.monnet.biz/~nico/xsane/result_xsane.jpg > > 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. > This should normally be done by the backends fine-calibration. Which SANE version are you using?
Gerhard
