plustek@linuxhacker.org

Subject: Canon LiDE 20 stripes/low quality scan - fixed in 0.46-test1
From: Soeren Sonnenburg
Date: Sun, 05 Oct 2003 11:05:50 +0200

Hi!

It seems you have found the way(tm) of how to deal with this kind of
canons scanners.

Here is the result of what I get when I use the new drivers

http://www.nn7.de/sane/linux-600dpi-orig.png
http://www.nn7.de/sane/linux-600dpi-high-gamma.png

The first is just xsane scanned with no adjustments, the second with
increased gamma.

Compared with the win-600dpi.jpg (see below) it is now very close and
really useful quality.

Compare with the old driver/windows:

I scanned 3 images, two under windows in 300dpi and 600dpi and one in
linux at 1200dpi (lower resolution is even worse).

http://www.nn7.de/sane/win-300dpi.jpg
http://www.nn7.de/sane/win-600dpi.jpg
http://www.nn7.de/sane/linux-1200dpi.jpg

Thousends of kudos Gerhard
you made my day!

Soeren