SCM

[#315593] Image stretched and cropped with Canon CanoScan LiDE 220, Lineart and 600 dpi

View Trackers | Bugs | Export CSV

Date:
2016-12-31 19:39
Priority:
3
State:
Open
Submitted by:
Jaime Gaspar (jaimegaspar-guest)
Assigned to:
Nobody (None)
Category:
backends (drivers)
Group:
None
Resolution:
None
Summary:
Image stretched and cropped with Canon CanoScan LiDE 220, Lineart and 600 dpi

Detailed description
When scanning an image with
- Skanlite;
- a scanner Canon CanoScan LiDE 220;
- scan mode Lineart;
- scan resolution 600 dpi;
the image is stretched and cropped vertically.

For example, when scanning a printout of the attached file "Original.pdf" with scan resolutions 300 dpi, 600 dpi and 1200 dpi, obtaining the three attached files "300dpi.png", "600dpi.png" and "1200dpi.png" respectively, the result is good for 300 dpi and 1200 dpi but bad for 600 dpi.

An author of Skanlite suggested that this may be a problem with the driver/backend, which I think that is Scanner Access Now Easy (SANE).

Followups: Sort comments antichronologically

Message
Date: 2017-05-08 21:33
Sender: Aaron Muir Hamilton

What exact version of sane-backends are you using? If you're on Ubuntu, this is the version number attached to 'sane-utils' or 'libsane'.

Date: 2017-06-26 12:44
Sender: Jaime Gaspar

Using
dpkg -l | grep sane
I get (among others)
ii libsane:amd64 1.0.25+git20150528-1ubuntu2.16.10.1 amd64 API library for scanners
ii sane-utils 1.0.25+git20150528-1ubuntu2.16.10.1 amd64 API library for scanners -- utilities
and I can still reproduce the bug.

Attached Files:

Attachments:
Size Name Date By Download
401 KiB1200dpi.png2016-12-31 19:39jaimegaspar-guest1200dpi.png
113 KiB600dpi.png2016-12-31 19:39jaimegaspar-guest600dpi.png
27 KiB300dpi.png2016-12-31 19:39jaimegaspar-guest300dpi.png
13 KiBOriginal.pdf2016-12-31 19:39jaimegaspar-guestOriginal.pdf

Changes:

Field Old Value Date By
File Added7325: 1200dpi.png2016-12-31 19:39jaimegaspar-guest
File Added7322: Original.pdf2016-12-31 19:39jaimegaspar-guest
File Added7323: 300dpi.png2016-12-31 19:39jaimegaspar-guest
File Added7324: 600dpi.png2016-12-31 19:39jaimegaspar-guest
Powered By FusionForge