kopia lustrzana https://gitlab.com/sane-project/website
70 wiersze
3.7 KiB
HTML
70 wiersze
3.7 KiB
HTML
|
<!-- received="Fri Aug 29 11:57:08 1997 MST" -->
|
||
|
<!-- sent="Fri, 29 Aug 97 14:13:36 -0400" -->
|
||
|
<!-- name="shendrix@gypsy.atlantic.infi.net" -->
|
||
|
<!-- email="shendrix@gypsy.atlantic.infi.net" -->
|
||
|
<!-- subject="Re: Backtracking in color scanning" -->
|
||
|
<!-- id="9708291813.AA19446@gypsy.atlantic.infi.net" -->
|
||
|
<!-- inreplyto="199708291754.KAA02430@hopper.mosberger" -->
|
||
|
<title>sane-devel: Re: Backtracking in color scanning</title>
|
||
|
<h1>Re: Backtracking in color scanning</h1>
|
||
|
<a href="mailto:shendrix@gypsy.atlantic.infi.net"><i>shendrix@gypsy.atlantic.infi.net</i></a><br>
|
||
|
<i>Fri, 29 Aug 97 14:13:36 -0400</i>
|
||
|
<p>
|
||
|
<ul>
|
||
|
<li> <b>Messages sorted by:</b> <a href="date.html#104">[ date ]</a><a href="index.html#104">[ thread ]</a><a href="subject.html#104">[ subject ]</a><a href="author.html#104">[ author ]</a>
|
||
|
<!-- next="start" -->
|
||
|
<li> <b>Next message:</b> <a href="0105.html">Rainer Krienke: "Re: Backtracking in color scanning"</a>
|
||
|
<li> <b>Previous message:</b> <a href="0103.html">David Mosberger-Tang: "Re: Nikon LS-1000"</a>
|
||
|
<li> <b>In reply to:</b> <a href="0102.html">David Mosberger-Tang: "Re: Backtracking in color scanning"</a>
|
||
|
<!-- nextthread="start" -->
|
||
|
<!-- reply="end" -->
|
||
|
</ul>
|
||
|
<!-- body="start" -->
|
||
|
In message <199708291754.KAA02430@hopper.mosberger> <br>
|
||
|
<a href="mailto:David.Mosberger@acm.org">David.Mosberger@acm.org</a> (> ) writes:<br>
|
||
|
<p>
|
||
|
<i>> >>>>> On Fri, 29 Aug 1997 17:04:01 +0200, Rainer krienke <<a href="mailto:krienke@mailhost.un">krienke@mailhost.un</a></i><br>
|
||
|
<i>>i-koblenz.de> said:</i><br>
|
||
|
<p>
|
||
|
<i>> Rainer> What suprises me a lot, is that under windows doing the same</i><br>
|
||
|
<i>> Rainer> scanprocess at the same resolution (via the mustec-twain</i><br>
|
||
|
<i>> Rainer> driver) does not cause backtracking to occur and is</i><br>
|
||
|
<i>> Rainer> completed much much faster (not even half the time).</i><br>
|
||
|
<i>> </i><br>
|
||
|
<i>> What size scan-buffer are you using? If you're using the default size</i><br>
|
||
|
<i>> of 32KB, could you try increasing it to 127.5KB? See sane-scsi(5) for</i><br>
|
||
|
<i>> info on how to do that.</i><br>
|
||
|
<i>> </i><br>
|
||
|
<i>> If increasing the scan buffer size to 127.5KB doesn't help, the</i><br>
|
||
|
<i>> backtracking could be due to timing problems. If the scanner software</i><br>
|
||
|
<i>> is too slow to issue the next "read data" command then backtracking</i><br>
|
||
|
<i>> would occur. What kind of computer are you using and how much memory</i><br>
|
||
|
<i>> does it have?</i><br>
|
||
|
<p>
|
||
|
Since I'm having the same problem, I'll reply here.<br>
|
||
|
<p>
|
||
|
I have a Pentium 200 with 96mb RAM and the scanner is on its own Adaptec<br>
|
||
|
1540 controller. The buffer is 128K and my scanning is very slow and does<br>
|
||
|
the backtracking. Turning backtrack has no substantial speedup and the<br>
|
||
|
colors are completely screwed up.<br>
|
||
|
<p>
|
||
|
Grayscale is great, and fast. Color under Windows is fast too. Of <br>
|
||
|
course, now I cannot use it under Windows because the TWAIN driver <br>
|
||
|
won't support my Adaptec.<br>
|
||
|
<p>
|
||
|
<pre>
|
||
|
--
|
||
|
Source code, list archive, and docs: <a href="http://www.azstarnet.com/~axplinux/sane/">http://www.azstarnet.com/~axplinux/sane/</a>
|
||
|
To unsubscribe: mail -s unsubscribe <a href="mailto:sane-devel-request@listserv.azstarnet.com">sane-devel-request@listserv.azstarnet.com</a>
|
||
|
</pre>
|
||
|
<!-- body="end" -->
|
||
|
<p>
|
||
|
<ul>
|
||
|
<!-- next="start" -->
|
||
|
<li> <b>Next message:</b> <a href="0105.html">Rainer Krienke: "Re: Backtracking in color scanning"</a>
|
||
|
<li> <b>Previous message:</b> <a href="0103.html">David Mosberger-Tang: "Re: Nikon LS-1000"</a>
|
||
|
<li> <b>In reply to:</b> <a href="0102.html">David Mosberger-Tang: "Re: Backtracking in color scanning"</a>
|
||
|
<!-- nextthread="start" -->
|
||
|
<!-- reply="end" -->
|
||
|
</ul>
|