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<!-- received="Mon May 10 17:38:26 1999 PDT" -->
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<!-- sent="Tue, 11 May 1999 01:37:42 +0100 (GMT)" -->
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<!-- name="Nick Lamb" -->
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<!-- email="njl98r@ecs.soton.ac.uk" -->
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<!-- subject="Re: [Announce] WinSANE 0.1.0.0 Release" -->
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<!-- inreplyto="19990510202737.A1979@bitterling.LeidenUniv.nl" -->
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<title>sane-devel: Re: [Announce] WinSANE 0.1.0.0 Release</title>
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<h1>Re: [Announce] WinSANE 0.1.0.0 Release</h1>
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<b>Nick Lamb</b> (<a href="mailto:njl98r@ecs.soton.ac.uk"><i>njl98r@ecs.soton.ac.uk</i></a>)<br>
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<i>Tue, 11 May 1999 01:37:42 +0100 (GMT)</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#80">[ date ]</a><a href="index.html#80">[ thread ]</a><a href="subject.html#80">[ subject ]</a><a href="author.html#80">[ author ]</a>
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<li> <b>Next message:</b> <a href="0081.html">Ray: "Re: saned troubles"</a>
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<li> <b>Previous message:</b> <a href="0079.html">Amir Marrei: "nikon ls30"</a>
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Nick Lamb (<a href="mailto:njl98r@ecs.soton.ac.uk">njl98r@ecs.soton.ac.uk</a>) wrote:<br>
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<i>> A series of three 10-bit samples (e.g. an RGB pixel captured by a one-pass</i><br>
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<i>> 30-bit parallel port scanner) will arive through SANE as...</i><br>
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<i>> </i><br>
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<i>> 98765432 10------ 98765432 10------ 98765432 10------</i><br>
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<p>
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On Mon, 10 May 1999, Ewald R. de Wit wrote:<br>
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<i>> This seems to be the mostly used format, but the HP 10 bit packing is</i><br>
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<i>> </i><br>
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<i>> ------98 76543210</i><br>
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<i>> </i><br>
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<i>> I would like to know if there are any other brands using LSB alignment for</i><br>
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<i>> their >8 bit packing.</i><br>
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<p>
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Are you suggesting that the HP backend exports this bizarre format?<br>
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If so, the HP backend is non-compliant wrt the SANE standard. The SANE<br>
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standard indicates two possible ways of encoding 8 < bits <= 16<br>
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This is neither of those two ways, so it's not possible for a properly<br>
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written frontend to correctly understand that format.<br>
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(The two possible ways are distinguished by ENDIANESS, and shown in my<br>
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original mail to the list, quoted above)<br>
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<p>
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Otherwise, I pity the poor HP backend, having to transform this bizarre<br>
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format into a usable SANE format, and presumably fix up every single<br>
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sample as it passes through the backend. I hope there aren't any more<br>
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scanners in production which choose this non-optimal solution.<br>
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<p>
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Nick.<br>
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<p>
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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.mostang.com/sane/">http://www.mostang.com/sane/</a>
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</pre>
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<li> <b>Next message:</b> <a href="0081.html">Ray: "Re: saned troubles"</a>
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<li> <b>Previous message:</b> <a href="0079.html">Amir Marrei: "nikon ls30"</a>
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