Hi,
can you open an issue at this address
(https://gitlab.com/sane-project/backends/)?
The maintainer of the backend will be able to look at your problem.
Thierry
Le 2020-08-14 01:21, Torbjörn Stabo a écrit :
Hi. Thanks for answering.
sane updated, versions before/after for info:
$ apt list --upgradable
Listar… Färdig
libsane-common/focal,focal 1.0.30+git20200809-focal0 all
[uppgraderingsbart från: 1.0.29-0ubuntu5]
libsane/focal 1.0.30+git20200809-focal0 amd64 [uppgraderingsbart från:
1.0.29-0ubuntu5]
sane-utils/focal 1.0.30+git20200809-focal0 amd64 [uppgraderingsbart
från: 1.0.29-0ubuntu5]
And here's the scanimage output:
$ scanimage -L
device `pixma:04A9173C' is a CANON Canon PIXMA MP490 multi-function
peripheral
/Regards, Torbjörn Stabo
Den 2020-08-14 kl. 00:14, skrev Thierry HUCHARD:
Hi Torbjörn,
Can you update your sane version?
$ sudo add-apt-repository ppa:rolfbensch/sane-git
$ sudo apt-get update
$ sudo apt install libsane libsane-common sane-utils
Can you provide the log of this command?
$ scanimage -L
Thierry
Le 2020-08-13 22:52, Torbjörn Stabo a écrit :
Hi.
I asked about this in #sane and was told to go here.
I am using xsane 0.999 in kubuntu 20.04. When I try to load settings
for my scanner using that GUI the scanner is called CanonPIXMAMP490.
$ scanimage --version
scanimage (sane-backends) 1.0.29; backend version 1.0.29
Now, the problem is that even though I put *one* paper in the scanner
the result image that is shown in xsane contains *two* papers! The
papers are next to eachother in the image, kind of "occupying half
the
width" each. They're not perfect(it was quite visible when I scanned
a
photo with persons in it), each paper is half as wide as it should
be.
If I scale the image and double its width things look much better.
It's like the two papers should be "interlaced" with eachother to
create the correct scan image.
Not sure if I can draw this in ascii:
Result image:
-----------------------
| --------- --------- |
| | Half | | Half | |
| | width | | width | |
| | paper | | paper | |
| | | | | |
| --------- --------- |
-----------------------
Scaled version of result image, doubled width:
-----------------------
| ------------------- |
| | Full | |
| | width | |
| | paper | |
| | | |
| ------------------- |
-----------------------
Does anyone here know what is causing this? And how to get rid of
that
"interlace effect"? Of course scaling the image is a satisfactory
workaround for me, though I'm not sure the result is pixel perfect.
Thanks in advance.
/Regards, Torbjörn Stabo
