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62 wiersze
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<!-- received="Thu Mar 4 09:13:43 1999 PST" -->
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<!-- name="Håkan Kvarnström" -->
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<!-- subject="Automatic Brightness and Contrast correction?" -->
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<title>sane-devel: Automatic Brightness and Contrast correction?</title>
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<h1>Automatic Brightness and Contrast correction?</h1>
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<b>Håkan Kvarnström</b> (<a href="mailto:Hakan.K.Kvarnstrom@telia.se"><i>Hakan.K.Kvarnstrom@telia.se</i></a>)<br>
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<i>Thu, 04 Mar 1999 18:12:18 +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#47">[ date ]</a><a href="index.html#47">[ thread ]</a><a href="subject.html#47">[ subject ]</a><a href="author.html#47">[ author ]</a>
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<li> <b>Next message:</b> <a href="0048.html">Tim Waugh: "xscanimage busy-loop"</a>
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<li> <b>Previous message:</b> <a href="0046.html">Håkan Kvarnström: "More problems with Microtek ScanMaker X6"</a>
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<li> <b>Next in thread:</b> <a href="0052.html">Oliver Rauch: "Re: Automatic Brightness and Contrast correction?"</a>
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<li> <b>Reply:</b> <a href="0052.html">Oliver Rauch: "Re: Automatic Brightness and Contrast correction?"</a>
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<li> <b>Reply:</b> <a href="0075.html">=?iso-8859-1?Q?H=E5kan=20Kvarnstr=F6m?=: "Re: Automatic Brightness and Contrast correction?"</a>
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Hi,<br>
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<p>
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Does any one know how to achieve automated brightness and<br>
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contrast correction for scans made using SANE?<br>
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Are there any tools or applications that can be used?<br>
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<p>
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I have been experimenting with "ppmhist" to create<br>
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histograms of images which I used to calculate correction<br>
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values for brightness and contrast. The problem is that it requires<br>
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me to scan the same image twice.<br>
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<p>
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Regards,<br>
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<p>
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Håkan Kvarnström<br>
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Telia Research AB<br>
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<p>
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<p>
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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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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="0048.html">Tim Waugh: "xscanimage busy-loop"</a>
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<li> <b>Previous message:</b> <a href="0046.html">Håkan Kvarnström: "More problems with Microtek ScanMaker X6"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0052.html">Oliver Rauch: "Re: Automatic Brightness and Contrast correction?"</a>
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<li> <b>Reply:</b> <a href="0052.html">Oliver Rauch: "Re: Automatic Brightness and Contrast correction?"</a>
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<li> <b>Reply:</b> <a href="0075.html">=?iso-8859-1?Q?H=E5kan=20Kvarnstr=F6m?=: "Re: Automatic Brightness and Contrast correction?"</a>
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</ul>
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