[sane-devel] cropped stripes in big scans?
m. allan noah
kitno455 at gmail.com
Fri Aug 7 11:31:18 UTC 2015
Can you determine if the problem is still happening with a current
development version of sane-backends?
On Fri, Aug 7, 2015 at 5:18 AM, Yury Tarasievich
<yury.tarasievich at gmail.com> wrote:
> I was checking a batch of grayscale scans made couple of years ago with
> Canon LIDE 25, and I have a suspicion that on full A4-format scans
> driver+sane (linux 32 bits, as compiled ca.2011) could produce
> height-reduced (cropped) stripes in image, spaced like something 20-25% of
> full length.
> Is such a problem known?
> Now, I'm not sure all those scans were affected. Is it possible the machine
> load was influencing the result, or something else was? How to test for such
> condition? I still own this scanner, using it for lesser grade scans, but
> crops in graphics wouldn't be so acceptable anyway.
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