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