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<title>sane-devel: Clueless about Umax 1220S gamma</title>
<h1>Clueless about Umax 1220S gamma</h1>
<b>V. Doan</b> (<a href="mailto:vdoan@chem.ucla.edu"><i>vdoan@chem.ucla.edu</i></a>)<br>
<i>Wed, 2 Dec 1998 20:29:52 -0800 (PST)</i>
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My Umax 1220S tends to scan darker that the actual image being scanned. I<br>
can usually correct for this by setting the gamma &gt;1 in color mode. In<br>
grey-scale or line-art mode, the scan also comes out darker. So I try to<br>
change the intensity gamma under grey-scale, but the picture turns out<br>
either black or is washed out (nearly all grey). Can someone help me set<br>
the correct intensity gamma for b/w? I wish xscanimage or scanimage has a<br>
brightness control for this scanner.<br>
<p>
Sorry if I sound clue-less; I'm new to scanning.<br>
Relavent info: Redhat Linux 5.1, kernal 2.0.34<br>
Umax 1220S scanner<br>
SANE v1.00 with sane-umax1.00a patch<br>
compiled with gtk v0.99.13<br>
<p>
Thanks<br>
-Vince<br>
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-----------------------------------------<br>
<a href="mailto:vinh@chem.ucla.edu">vinh@chem.ucla.edu</a><br>
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