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<title>sane-devel: Re: SANE &amp; exposure times</title>
<h1>Re: SANE &amp; exposure times</h1>
<b>Nick Lamb</b> (<a href="mailto:njl98r@ecs.soton.ac.uk"><i>njl98r@ecs.soton.ac.uk</i></a>)<br>
<i>Thu, 29 Jul 1999 17:17:45 +0100 (GMT)</i>
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<li> <b>Next message:</b> <a href="0217.html">Ewald R. de Wit: "Re: SANE &amp; exposure times"</a>
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There is a third option which won't have me (or anyone else) crying out<br>
for the lost precision from messing about with my data in the backend,<br>
while avoiding having to put the same code in every frontend...<br>
<p>
You can write "proxy" backends in SANE, like sane-net, which look like<br>
both a front-end and a back-end. This means that Coolscan need only<br>
know how to do standard SANE stuff (+ Exposures or whatever exported<br>
as a SANE well-known-option) and the frontend need know nothing about<br>
negatives, but the proxy will do any mangling for you.<br>
<p>
This way users who want e.g. exciting multiple-scan mangling, or cool<br>
exposure time compensation algorithms, can use them without everyone<br>
having to put up with the overhead, delay, and/or loss of precision.<br>
<p>
Isn't this the best of all possible worlds?<br>
<p>
Nick.<br>
<p>
<p>
<pre>
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<li> <b>Next message:</b> <a href="0217.html">Ewald R. de Wit: "Re: SANE &amp; exposure times"</a>
<li> <b>Previous message:</b> <a href="0215.html">Jens Scheithauer: "scanimage and HP scanners"</a>
<li> <b>In reply to:</b> <a href="0210.html">Andreas Rick: "Re: SANE &amp; exposure times"</a>
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<li> <b>Next in thread:</b> <a href="0211.html">Didier Carlier: "Re: SANE &amp; exposure times"</a>
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