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71 wiersze
3.6 KiB
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<!-- received="Thu Dec 3 07:51:44 1998 PST" -->
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<!-- sent="Wed, 02 Dec 1998 18:03:31 +0100" -->
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<!-- name="Oliver Rauch" -->
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<!-- email="oliver.rauch@Wolfsburg.DE" -->
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<!-- subject="Re: Adjusting contrast and brightness" -->
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<!-- inreplyto="Adjusting contrast and brightness" -->
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<title>sane-devel: Re: Adjusting contrast and brightness</title>
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<h1>Re: Adjusting contrast and brightness</h1>
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<b>Oliver Rauch</b> (<a href="mailto:oliver.rauch@Wolfsburg.DE"><i>oliver.rauch@Wolfsburg.DE</i></a>)<br>
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<i>Wed, 02 Dec 1998 18:03:31 +0100</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#18">[ date ]</a><a href="index.html#18">[ thread ]</a><a href="subject.html#18">[ subject ]</a><a href="author.html#18">[ author ]</a>
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<li> <b>Next message:</b> <a href="0019.html">Andre Couture: "HP 6200C (USB/SCSI-2) ? any cautions???"</a>
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<li> <b>Previous message:</b> <a href="0017.html">Matt Ryan: "MicroTek X6el"</a>
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<li> <b>Maybe in reply to:</b> <a href="0004.html">David Fox: "Adjusting contrast and brightness"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0024.html">David Fox: "Re: Adjusting contrast and brightness"</a>
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<li> <b>Next in thread:</b> <a href="0023.html">William L. Sebok: "Re: Adjusting contrast and brightness"</a>
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<li> <b>Next in thread:</b> <a href="0008.html">Jon Knight: "Re: Genius scanners"</a>
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<li> <b>Reply:</b> <a href="0024.html">David Fox: "Re: Adjusting contrast and brightness"</a>
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</ul>
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William L. Sebok wrote:<br>
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<p>
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<i>> David Fox says:</i><br>
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<i>> > What I miss from the Windows scanning software is the way it could</i><br>
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<i>> > automatically choose good settings for the brightness and contrast</i><br>
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<i>> > based on the selected section of the preview. I'm interested in</i><br>
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<i>> > implementing this for xscanimage, can anyone point me to a good</i><br>
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<i>> > algorithm for doing this, or to a source of good algorithms?</i><br>
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<i>></i><br>
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<i>> Actually, automatically choosing brightness, contrast and gamma from a</i><br>
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<i>> selection on the preview is exactly the feature on the windows driver for</i><br>
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<i>> my Umax S12 that I miss most in sane. That and being able to zoom the preview</i><br>
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<i>> window to make a decently precise selection.</i><br>
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<i>></i><br>
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<p>
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Will all be included into my new frontend.<br>
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Online gamma/contrast/brightness-changes already work,<br>
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automatic contrast/brightness is easy to implement.<br>
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<p>
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I think I will make a pre-alpha-version available next week!<br>
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<p>
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Bye<br>
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Oliver<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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<!-- body="end" -->
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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="0019.html">Andre Couture: "HP 6200C (USB/SCSI-2) ? any cautions???"</a>
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<li> <b>Previous message:</b> <a href="0017.html">Matt Ryan: "MicroTek X6el"</a>
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<li> <b>Maybe in reply to:</b> <a href="0004.html">David Fox: "Adjusting contrast and brightness"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0024.html">David Fox: "Re: Adjusting contrast and brightness"</a>
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<li> <b>Next in thread:</b> <a href="0023.html">William L. Sebok: "Re: Adjusting contrast and brightness"</a>
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<li> <b>Next in thread:</b> <a href="0008.html">Jon Knight: "Re: Genius scanners"</a>
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<li> <b>Reply:</b> <a href="0024.html">David Fox: "Re: Adjusting contrast and brightness"</a>
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<!-- reply="end" -->
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</ul>
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