[sane-devel] HP scanjet 2300c, xsane, xscanimage, somme comparisons

Gauthier Vandemoortele gauthier.v at skynet.be
Sun Apr 22 11:53:18 UTC 2012


I've done some tests with my scanner (Hewlett-Packard ScanJet 2300c)
and xsane or xscanimage.

I found xsane more user-friendly, but now I note that with some
images, results from xsane are not usable, while xscanimage can 
handle such tricky cases.

Particularly, I can'nt get soft-toned images at 1200 dpi with xsane:
all that i get is a sharp black and white-only image.

In case it can be interesting for developpers, I've uploaded some
image at


example_xscanimage_300dpi.pnm   with default gamma 
example_xscanimage_600dpi.pnm   idem 
example_xscanimage_600dpi_b.pnm with custom gamma, better 
example_xscanimage_1200dpi.pnm  with default gamma 
example_xscanimage_1200dpi_b.pnm with custom gamma

I was surprised that a correct gamma at 300dpi becomes too dark at 600
and more, and it was necessary to lighten the loud keys.

example_xsane_1200dpi.pnm  (all with same setting, see gamma_xsane.png)


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