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<title>sane-devel: Re: Probable Bugs &amp; Suggestions</title>
<h1>Re: Probable Bugs &amp; Suggestions</h1>
<b>David Mosberger-Tang</b> (<a href="mailto:David.Mosberger@acm.org"><i>David.Mosberger@acm.org</i></a>)<br>
<i>Wed, 14 Jan 1998 16:00:44 -0800</i>
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<i>&gt;&gt;&gt;&gt;&gt; On Wed, 14 Jan 1998 20:43:14 +0100 (MET), <a href="mailto:becka@rz.uni-duesseldorf.de">becka@rz.uni-duesseldorf.de</a> said:</i><br>
<p>
<i> &gt;&gt; I don't particular like this solution. A reasonably technical</i><br>
<i> &gt;&gt; argument against it is that it would be slow to gray out options</i><br>
<i> &gt;&gt; when talking to a scanner over a high-latency/high-bandwidth</i><br>
<i> &gt;&gt; link. This is because for each option a dummy set-option call</i><br>
<i> &gt;&gt; would have to be performed, which costs a network roundtrip.</i><br>
<p>
Andy&gt; Ahem - I may sound a bit heretic here, but :<br>
<p>
Andy&gt; Who actually needs that ?<br>
<p>
Andy&gt; What sense does it make to tune options in the middle of a<br>
Andy&gt; scan ?<br>
<p>
Andy&gt; Do you want to produce a fade-effect by sliding the<br>
Andy&gt; brightness slider during the scan ? If so, I'd suggest you<br>
Andy&gt; seek help at either an image manipulation program or a<br>
Andy&gt; therapist.<br>
<p>
Andy&gt; What is wrong about waiting for the scan to complete and then<br>
Andy&gt; set the new options ? Do you need the 2 seconds you save ? Or<br>
Andy&gt; do you want to scan triangle shaped areas by adjusting the<br>
Andy&gt; width ?<br>
<p>
Andy&gt; Sorry, but I do not understand this thread. Someone enlighten<br>
Andy&gt; me, please !<br>
<p>
You forget that SANE is not limited to scanners. Consider xcam and<br>
video cameras.<br>
<p>
Also, changing options in the middle of a scan can make perfect sense<br>
(assuming the changed option takes effect when the current scan is<br>
over). E.g., try to scan the same image four times in a row with<br>
gamma values 0.5, 0.75, 1.25, and 1.5 and see what works better/faster<br>
for you.<br>
<p>
--david<br>
<p>
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<li> <b>Next message:</b> <a href="0058.html">David Mosberger-Tang: "Re: Parallel Support?"</a>
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