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<title>sane-devel: SANE V2</title>
<h1>SANE V2</h1>
<b>Nick Lamb</b> (<a href="mailto:njl98r@ecs.soton.ac.uk"><i>njl98r@ecs.soton.ac.uk</i></a>)<br>
<i>Tue, 24 Aug 1999 19:55:58 +0100 (GMT)</i>
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I've been writing up a proposed SANE 1.2 draft document, based on sane.tex<br>
from the SANE 1.0.1 distribution.<br>
<p>
However, when it came to adding JBIG (which someone mentioned wanting) I<br>
noticed that JBIG uses the exact same arithmetic coding stuff which was<br>
patented by IBM and thus lies unused in the JPEG standards.<br>
<p>
At the moment I have explicitly mentioned the patented process as a no-no<br>
in the JPEG frame type, which makes sense because hardly anything can<br>
read JPEG streams with arithmetic encoding anyway. For JBIG we don't have<br>
that option because the patented Q-coder is in the baseline standard.<br>
<p>
So: A question for those writing drivers for high-speed document scanning<br>
<p>
Should we include a JBIG frame type anyway? If we do it will be the first<br>
format for which SANE cannot include a reference implementation. The<br>
advantage in supporting it anyway would be that you could potentially<br>
save the JBIG image (if an interchange format exists) and import it into<br>
your proprietary document management system. The disadvantage is that<br>
this sets an unpleasant precedent.<br>
<p>
Nick.<br>
<p>
<p>
<pre>
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