Hello, I enabled the debug traces and scanned an image. The debug log is here: http://pastebin.com/XGEE8qUW I uploaded the resulting image here: https://docs.google.com/file/d/0B1vsOamDoU0IVGJBRjB4NGE0THc/edit?usp=sharing
I hope it is what you asked for. Eva On 11 August 2013 22:28, Stef <stef.dev at free.fr> wrote: > On 11/08/2013 18:38, idle wrote: > > Hello, > > thank you for your replies. > > > This model is listed as 'basic' in sane-backends 1.0.22. Try upgrading >>> to at least 1.0.23, or a recent git snapshot. >>> >>> allan >>> >> > I'm trying now with the git snapshot: > scanimage (sane-backends) 1.0.24git; backend version 1.0.24 > > Unfortunately, the result is the same. > > >> Hello, >> >> if updated version doesn't improve the scan quality. You may also >> test if it is related to improper warming up by doing several scans. >> Clearing calibration (with the 'clear calibration' option)cache between >> each scan, so a calibration happens each time. >> >> Regards, >> Stef >> > > Thank you for the suggestion, I tried a series of 10 scans, clearing the > calibration after each one, and the result is interesting. The first scan > of the series is visibly lighter than the rest (although still too gray), > the second and third are each slightly darker than the previous one. All > the following scans are the same as the third. So there is something going > on. The stripes are still there, though. > > Here are the first three scans: > http://i.nahraj.to/f/s5o.jpg > http://i.nahraj.to/f/s5p.jpg > http://i.nahraj.to/f/s5q.jpg > > Eva > > Hello, > > it seems gain calibration isn't good, resulting in poor shading > calibration. Could you send the debug log generated when debug traces are > enabled by: > export SANE_DEBUG_GENESYS=255 > export SANE_DEBUG_GENESYS_LOW=255 > export SANE_DEBUG_GENESYS_GL646=255 > Some *.pnm debug files will be created, please also send them. > > Regards, > Stef > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20130811/ad64eab5/attachment.html>
