sane-project-website/old-archive/1997-02/0050.html

72 wiersze
3.2 KiB
HTML

<!-- received="Wed Apr 16 02:50:21 1997 MST" -->
<!-- sent="Wed, 16 Apr 1997 11:41:48 +0200 (MET DST)" -->
<!-- name="Matthias Lautner" -->
<!-- email="lautner@hoggle.syscomp.de" -->
<!-- subject="Re: mustek 3-pass backend fix" -->
<!-- id="199704160941.LAA20235@hoggle.syscomp.de" -->
<!-- inreplyto="199704150423.VAA00057@web.azstarnet.com" -->
<title>sane-devel: Re: mustek 3-pass backend fix</title>
<h1>Re: mustek 3-pass backend fix</h1>
<b>Matthias Lautner</b> (<a href="mailto:lautner@hoggle.syscomp.de"><i>lautner@hoggle.syscomp.de</i></a>)<br>
<i>Wed, 16 Apr 1997 11:41:48 +0200 (MET DST)</i>
<p>
<ul>
<li> <b>Messages sorted by:</b> <a href="date.html#50">[ date ]</a><a href="index.html#50">[ thread ]</a><a href="subject.html#50">[ subject ]</a><a href="author.html#50">[ author ]</a>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0051.html">David Mosberger-Tang: "Re: MFS-12000CX"</a>
<li> <b>Previous message:</b> <a href="0049.html">David Mosberger-Tang: "anybody with a Mustek 3-pass scanner?"</a>
<!-- nextthread="start" -->
<!-- reply="end" -->
</ul>
<!-- body="start" -->
Hi!<br>
<p>
While scanning color with my MFS-12000CX only one pass is done, the grey<br>
image is stretched<br>
<p>
- there is a 3-pass loop missing over sane_start(), but how should the<br>
pipe communication work if we make a loop in there?<br>
Should the forked job do the second pass and fork a third job ...<br>
or should it be better to call sane_start() 3 times ?<br>
How is the standard ? The figure in "4.4 Code-Flow" page 31 is unclear but<br>
scan calls sane_start() only one time.<br>
<p>
- wich format has the ppm file if you have 3 color planes folowing one after <br>
the other; or do you have to mix it to interleaved mode? (scan doesn't)<br>
<br>
- the range of the scanning area seems to be not correct<br>
<p>
scan -v -dmustek --mode Gray -t70 -l100 -x80 -y40 --resolution 150 &gt;out.ppm<br>
scan: scanning image of size 486x244 pixels at 8 bits/pixel<br>
This seams to be correct.<br>
<p>
scan -v -dmustek --mode Color -t70 -l100 -x80 -y40 --resolution 150 &gt;out.pp<br>
scan: scanning image of size 162x244 pixels at 24 bits/pixel<br>
<p>
set mode to the end of the parameterlist:<br>
<p>
scan -v -dmustek -t70 -l100 -x80 -y40 --resolution 150 --mode Gray &gt;out.ppm<br>
scan: scanning image of size 694x1688 pixels at 8 bits/pixel<br>
<p>
<p>
Matthias<br>
------------------------------------------------------------------<br>
Matthias Lautner email: <a href="mailto:m_lautner@syscomp.de">m_lautner@syscomp.de</a><br>
Fa. SYSCOMP GmbH Augsburg phone: 0821 / 4201-139<br>
Biochemische Dienstleistungen fax : 0821 / 4201-411<br>
<p>
<pre>
--
Source code, list archive, and docs: <a href="http://www.azstarnet.com/~axplinux/sane/">http://www.azstarnet.com/~axplinux/sane/</a>
To unsubscribe: mail -s unsubscribe <a href="mailto:sane-devel-request@listserv.azstarnet.com">sane-devel-request@listserv.azstarnet.com</a>
</pre>
<!-- body="end" -->
<p>
<ul>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0051.html">David Mosberger-Tang: "Re: MFS-12000CX"</a>
<li> <b>Previous message:</b> <a href="0049.html">David Mosberger-Tang: "anybody with a Mustek 3-pass scanner?"</a>
<!-- nextthread="start" -->
<!-- reply="end" -->
</ul>