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<TITLE>sane-devel: Scanning Resolutions</TITLE>
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<META NAME="Author" CONTENT="Torsten Howard (torsten@inetw.net)">
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<META NAME="Subject" CONTENT="Scanning Resolutions">
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<H1>Scanning Resolutions</H1>
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<STRONG>From:</STRONG> Torsten Howard (<A HREF="mailto:torsten@inetw.net?Subject=Re:%20Scanning%20Resolutions&In-Reply-To=<38D95742.93EDDE82@inetw.net>"><EM>torsten@inetw.net</EM></A>)<BR>
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<STRONG>Date:</STRONG> Wed Mar 22 2000 - 15:29:06 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0246.html">Michael Laajanen: "HP scanner"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0244.html">franck: "Re: SANE 1.0.2 and xsane 0.57"</A>
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Hello,
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<BR>
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<P>I have a general scanning question.
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<BR>
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<P>If I scan an 8.5x11 sheet of paper at 72dpi and scale by 190%, I get an image approximately 1160x1500. This compresses to 50kb using .png format, which is fine. I did this under Windows.
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<BR>
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<P>Now, under linux, sane does not support scaling by XX%. So, I can scan at 120dpi giving me an image that is ~1020x1320, which also compresses to ~50kb using .png format.
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<P>Note that the picture size was chosen each time to fit the width of my laptop screen, which is 1024 pixels, with the margins of the scanned picture cut off. I also tried scaling with a software filter, and it sucked rotten eggs.
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<BR>
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<P>So, what do I gain/lose by using hardware scaling vs. resolution scaling?
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<BR>
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<P>Thanks,
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<BR>
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Torsten
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<BR>
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<P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Wed Mar 22 2000 - 21:02:07 PST</EM>
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