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<!-- received="Mon Aug 2 01:04:19 1999 PDT" -->
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<!-- sent="Mon, 02 Aug 1999 10:00:44 +0200" -->
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<!-- name="Andreas Rick" -->
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<!-- email="rickand@gemse.fr" -->
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<!-- subject="Re: xsane-0.31 available" -->
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<!-- id="37A5502C.B71F9F90@gemse.fr" -->
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<!-- inreplyto="xsane-0.31 available" -->
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<title>sane-devel: Re: xsane-0.31 available</title>
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<h1>Re: xsane-0.31 available</h1>
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<b>Andreas Rick</b> (<a href="mailto:rickand@gemse.fr"><i>rickand@gemse.fr</i></a>)<br>
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<i>Mon, 02 Aug 1999 10:00:44 +0200</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#10">[ date ]</a><a href="index.html#10">[ thread ]</a><a href="subject.html#10">[ subject ]</a><a href="author.html#10">[ author ]</a>
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<li> <b>Next message:</b> <a href="0011.html">Oliver Rauch: "Re: xsane-0.31 available"</a>
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<li> <b>Previous message:</b> <a href="0009.html">Nick Lamb: "Re: xsane-0.31 available"</a>
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<li> <b>Maybe in reply to:</b> <a href="0005.html">Oliver Rauch: "xsane-0.31 available"</a>
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<li> <b>Next in thread:</b> <a href="0011.html">Oliver Rauch: "Re: xsane-0.31 available"</a>
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</ul>
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Nick Lamb wrote:<br>
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<i>> </i><br>
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<i>> On Sun, 1 Aug 1999, Oliver Rauch wrote:</i><br>
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<i>> </i><br>
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<i>> > - changed all RGBI -> RGBA because the 4th channel is ALPHA</i><br>
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<i>> </i><br>
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<i>> Huh? I thought I == Infrared? Is this a different RGBI?</i><br>
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<i>> </i><br>
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<i>> Nick.</i><br>
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<i>> </i><br>
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<i>> --</i><br>
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<i>> Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a></i><br>
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<i>> To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a></i><br>
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<p>
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On the Nikon-Filmscanner we use the infrared channel<br>
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as forth channel but it is stored in the alpha channel<br>
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of the png format (or other formats) or it is transfered<br>
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to gimp as alpha-channel.<br>
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If we think of the dust as beeing a filter which occludes<br>
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some of the image, the interpretation as "apha" channel is<br>
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quite acceptable.<br>
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As there might be other methods to scan an "alpha" channel<br>
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than by scanning with infrared ligth I think the <br>
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renaming to RGBA is a good idea.<br>
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<p>
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Andreas<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.mostang.com/sane/">http://www.mostang.com/sane/</a>
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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</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="0011.html">Oliver Rauch: "Re: xsane-0.31 available"</a>
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<li> <b>Previous message:</b> <a href="0009.html">Nick Lamb: "Re: xsane-0.31 available"</a>
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<li> <b>Maybe in reply to:</b> <a href="0005.html">Oliver Rauch: "xsane-0.31 available"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0011.html">Oliver Rauch: "Re: xsane-0.31 available"</a>
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</ul>
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