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<p>Hi.</p>
<p>I asked about this in #sane and was told to go here.</p>
<p>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 <span
class="terminal-word" style="display:inline-block;"></span><span
class="terminal-word" style="display:inline-block;">C</span><span
class="terminal-word" style="display:inline-block;">a</span><span
class="terminal-word" style="display:inline-block;">n</span><span
class="terminal-word" style="display:inline-block;">o</span><span
class="terminal-word" style="display:inline-block;">n</span><span
class="terminal-word" style="display:inline-block;">P</span><span
class="terminal-word" style="display:inline-block;">I</span><span
class="terminal-word" style="display:inline-block;">X</span><span
class="terminal-word" style="display:inline-block;">M</span><span
class="terminal-word" style="display:inline-block;">A</span><span
class="terminal-word" style="display:inline-block;">M</span><span
class="terminal-word" style="display:inline-block;">P</span><span
class="terminal-word" style="display:inline-block;">4</span><span
class="terminal-word" style="display:inline-block;">9</span><span
class="terminal-word" style="display:inline-block;">0.<br>
</span></p>
<p><span class="terminal-word" style="display:inline-block;"><tt>$
scanimage --version</tt><tt><br>
</tt><tt>scanimage (sane-backends) 1.0.29; backend version
1.0.29</tt><br>
</span></p>
<p><span class="terminal-word" style="display:inline-block;">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.<br>
</span></p>
<p><span class="terminal-word" style="display:inline-block;">Not
sure if I can draw this in ascii:</span></p>
<p><span class="terminal-word" style="display:inline-block;">Result
image:</span></p>
<p><span class="terminal-word" style="display:inline-block;"><tt>-----------------------</tt><tt><br>
</tt><tt>| --------- --------- |</tt><tt><br>
</tt><tt>| | Half |</tt><tt> | Half | |<br>
</tt><tt>| | width | | width | |</tt><tt><br>
</tt><tt>| | paper | | paper | |</tt><tt><br>
</tt><tt>| | | | | |<br>
| --------- --------- |<br>
-----------------------</tt><br>
</span></p>
<p><span class="terminal-word" style="display:inline-block;">Scaled
version of result image, doubled width:<br>
</span></p>
<p><span class="terminal-word" style="display:inline-block;"><tt>-----------------------</tt><tt><br>
</tt><tt>| ------------------- |</tt><tt><br>
</tt><tt>| | Full</tt><tt> | |<br>
</tt><tt>| | width |</tt><tt> |<br>
</tt><tt>| | paper | |</tt><tt><br>
</tt><tt>| | | |<br>
| ------------------- |<br>
-----------------------</tt></span></p>
<p>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.<br>
<br>
Thanks in advance.</p>
<p>/Regards, Torbjörn Stabo<br>
<span class="terminal-word" style="display:inline-block;"></span></p>
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