kopia lustrzana https://gitlab.com/sane-project/website
179 wiersze
6.5 KiB
HTML
179 wiersze
6.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
|
||
"http://www.w3.org/TR/REC-html40/loose.dtd">
|
||
<HTML>
|
||
<HEAD>
|
||
<TITLE>sane-devel: Re: make backend work on usb</TITLE>
|
||
<META NAME="Author" CONTENT="msitkows@au1.ibm.com (msitkows@au1.ibm.com)">
|
||
<META NAME="Subject" CONTENT="Re: make backend work on usb">
|
||
</HEAD>
|
||
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
|
||
<H1>Re: make backend work on usb</H1>
|
||
<!-- received="Mon, 7 Feb 2000 10:30:15 +1100" -->
|
||
<!-- isoreceived="20000206233015" -->
|
||
<!-- sent="Mon, 7 Feb 2000 10:30:15 +1100" -->
|
||
<!-- isosent="20000206233015" -->
|
||
<!-- name="msitkows@au1.ibm.com" -->
|
||
<!-- email="msitkows@au1.ibm.com" -->
|
||
<!-- subject="Re: make backend work on usb" -->
|
||
<!-- id="CA25687D.00816CB5.00@d73mta01.au.ibm.com" -->
|
||
<!-- inreplyto="make backend work on usb" -->
|
||
<STRONG>From:</STRONG> <A HREF="mailto:msitkows@au1.ibm.com?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>"><EM>msitkows@au1.ibm.com</EM></A><BR>
|
||
<STRONG>Date:</STRONG> Sun Feb 06 2000 - 15:30:15 PST
|
||
<P>
|
||
<!-- next="start" -->
|
||
<LI><STRONG>Next message:</STRONG> <A HREF="0072.html">David Mosberger-Tang: "test 2"</A>
|
||
<UL>
|
||
<LI><STRONG>Previous message:</STRONG> <A HREF="0070.html">Oliver Neukum: "Re: make backend work on usb"</A>
|
||
<LI><STRONG>Maybe in reply to:</STRONG> <A HREF="0063.html">Oliver Neukum: "make backend work on usb"</A>
|
||
<!-- nextthread="start" -->
|
||
<!-- reply="end" -->
|
||
<LI><STRONG>Messages sorted by:</STRONG>
|
||
<A HREF="date.html#71">[ date ]</A>
|
||
<A HREF="index.html#71">[ thread ]</A>
|
||
<A HREF="subject.html#71">[ subject ]</A>
|
||
<A HREF="author.html#71">[ author ]</A>
|
||
</UL>
|
||
<HR NOSHADE><P>
|
||
<!-- body="start" -->
|
||
<P>
|
||
From what I've heard, the scanning head reads two adjacent pixels at a
|
||
<BR>
|
||
time, and then moves on by two positions. One data stream is all the odd
|
||
<BR>
|
||
pixels, the other is all the even pixels. This means the mechanism can be
|
||
<BR>
|
||
twice as coarse as the true resolution. HP has a fancy name for it, which I
|
||
<BR>
|
||
forget.
|
||
<BR>
|
||
Sorry I can't give you any more information. I got this from someone at HP,
|
||
<BR>
|
||
whose main specialty actually wasn't scanners.
|
||
<BR>
|
||
<P>Mark
|
||
<BR>
|
||
------------------------------------------------------------------------
|
||
<BR>
|
||
Mark Sitkowski ~{Ц<>ȿ<C8BF>~}!
|
||
<BR>
|
||
14 Loddon Street
|
||
<BR>
|
||
Box Hill North, Victoria 3129
|
||
<BR>
|
||
------------------------------------------------------------------------
|
||
<BR>
|
||
Phone: (613-9) 897-1375 ~{<7B><><EFBFBD>Ҵ<EFBFBD><D2B4>绰~}!
|
||
<BR>
|
||
Fax: (613-9) 897-1376 E-mail: <A HREF="mailto:marks@iaccess.com.au?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>">marks@iaccess.com.au</A>
|
||
<BR>
|
||
Mobile: 0413-890-777
|
||
<BR>
|
||
Web : <A HREF="http://www.angelfire.com/de/designsim">http://www.angelfire.com/de/designsim</A>
|
||
<BR>
|
||
<A HREF="http://www.asiafind.com/sites/designsim">http://www.asiafind.com/sites/designsim</A>
|
||
<BR>
|
||
------------------------------------------------------------------------
|
||
<BR>
|
||
<P><P><P>
|
||
<BR><P>
|
||
<P>Am Son, 06 Feb 2000 schrieben Sie:
|
||
<BR>
|
||
<EM>> Oliver Neukum <<A HREF="mailto:Oliver.Neukum@lrz.uni-muenchen.de?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>">Oliver.Neukum@lrz.uni-muenchen.de</A>> on 07/02/2000 05:32:15
|
||
</EM><BR>
|
||
<EM>>
|
||
</EM><BR>
|
||
<EM>> >>The scanner reports two sources of data. I am not sure
|
||
</EM><BR>
|
||
<EM>> >>whether I am reading from the correct one, or even if I need to do some
|
||
</EM><BR>
|
||
<EM>> >>weirder stuff.
|
||
</EM><BR>
|
||
<EM>> ......
|
||
</EM><BR>
|
||
<EM>>
|
||
</EM><BR>
|
||
<EM>> >>I am going to try to read from the other source, unless I get better
|
||
</EM><BR>
|
||
<EM>> ideas.
|
||
</EM><BR>
|
||
<EM>> >>I'd appreciate links to tools. I know C but neither USB nor scanners.
|
||
</EM><BR>
|
||
<EM>> >>Please, please suggestions !?
|
||
</EM><BR>
|
||
<EM>>
|
||
</EM><BR>
|
||
<EM>> I've been told that the reason you're seeing this, is that HP scanners
|
||
</EM><BR>
|
||
use
|
||
<BR>
|
||
<EM>> two interpolated sources of scan data, to double the resolution (this
|
||
</EM><BR>
|
||
could
|
||
<BR>
|
||
<EM>> be wrong, but it makes sense...).
|
||
</EM><BR>
|
||
<P>Is that true for Microtek, too ?
|
||
<BR>
|
||
<P><EM>> If this is the case, then you need to read both data streams, and
|
||
</EM><BR>
|
||
<EM>> interpolate the pixels - otherwise, you'll get a picture which looks
|
||
</EM><BR>
|
||
almost
|
||
<BR>
|
||
<EM>> correct - but not quite...
|
||
</EM><BR>
|
||
<P>But what would I want to read an interpolated stream for?
|
||
<BR>
|
||
In addition I get no data at all.
|
||
<BR>
|
||
Could you please elaborate ?
|
||
<BR>
|
||
<EM>>
|
||
</EM><BR>
|
||
<EM>> --
|
||
</EM><BR>
|
||
<EM>> Hope this helps,
|
||
</EM><BR>
|
||
<EM>> Mark
|
||
</EM><BR>
|
||
<EM>> --
|
||
</EM><BR>
|
||
<EM>> Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
|
||
</EM><BR>
|
||
<EM>> To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>">majordomo@mostang.com</A>
|
||
</EM><BR>
|
||
<P><PRE>
|
||
--
|
||
Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
|
||
To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>">majordomo@mostang.com</A>
|
||
<P><P><P><P>--
|
||
Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
|
||
To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<CA25687D.00816CB5.00@d73mta01.au.ibm.com>">majordomo@mostang.com</A>
|
||
</PRE>
|
||
<P><!-- body="end" -->
|
||
<HR NOSHADE>
|
||
<UL>
|
||
<!-- next="start" -->
|
||
<LI><STRONG>Next message:</STRONG> <A HREF="0072.html">David Mosberger-Tang: "test 2"</A>
|
||
<LI><STRONG>Previous message:</STRONG> <A HREF="0070.html">Oliver Neukum: "Re: make backend work on usb"</A>
|
||
<LI><STRONG>Maybe in reply to:</STRONG> <A HREF="0063.html">Oliver Neukum: "make backend work on usb"</A>
|
||
<!-- nextthread="start" -->
|
||
<!-- reply="end" -->
|
||
<LI><STRONG>Messages sorted by:</STRONG>
|
||
<A HREF="date.html#71">[ date ]</A>
|
||
<A HREF="index.html#71">[ thread ]</A>
|
||
<A HREF="subject.html#71">[ subject ]</A>
|
||
<A HREF="author.html#71">[ author ]</A>
|
||
</UL>
|
||
<!-- trailer="footer" -->
|
||
<HR NOSHADE>
|
||
<P>
|
||
<SMALL>
|
||
<EM>
|
||
This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
|
||
: <EM>Sun Feb 06 2000 - 15:35:45 PST</EM>
|
||
</EM>
|
||
</SMALL>
|
||
</BODY>
|
||
</HTML>
|