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<TITLE>sane-devel: Re: Snapscan backend</TITLE>
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<META NAME="Author" CONTENT="Louis van Dompselaar (louis@sitebysite.nl)">
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<H1>Re: Snapscan backend</H1>
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<STRONG>From:</STRONG> Louis van Dompselaar (<A HREF="mailto:louis@sitebysite.nl?Subject=Re:%20Snapscan%20backend&In-Reply-To=<391E76C6.E052016C@sitebysite.nl>"><EM>louis@sitebysite.nl</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sun May 14 2000 - 02:49:58 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0100.html">Petter Reinholdtsen: "Sane BeOS port (Was: Sane port)"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0098.html">Louis van Dompselaar: "Re: Snapscan backend"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0097.html">Steve Underwood: "Re: Snapscan backend"</A>
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<EM>> In snapscan.c look for the section that sets the colour
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</EM><BR>
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<EM>> depth for the scanner (look for pd->depths = depths12). In that sections
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</EM><BR>
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<EM>> add the line "case SNAPSCAN1236S:" above the existing line "case
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</EM><BR>
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<EM>> PRISA620S:" and see what happens.
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</EM><BR>
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<P>Nope, that's not it. The scans remain the same. The thing is
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<BR>
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that with the old backend (which also treated it as 30-bit),
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<BR>
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the colour scans were okay, apart from the chroma offset.
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<BR>
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The new backend does something funny with the data.
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<P>I did a comparison between a greyscale scan and a colour
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<BR>
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scan (with the depths12 setting): <A HREF="http://dompselaar.org/snapcolbw.jpg">http://dompselaar.org/snapcolbw.jpg</A>
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<BR>
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The first 10 or so lines are okay, then it goes into the
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purple and green blocks, then there's another bit that
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looks okay, although offset to the right, etc.
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<BR>
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<P><PRE>
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--
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Louis van Dompselaar <A HREF="mailto:louis@sitebysite.nl?Subject=Re:%20Snapscan%20backend&In-Reply-To=<391E76C6.E052016C@sitebysite.nl>">louis@sitebysite.nl</A>
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Site by Site B.V. Duivendrechtsekade 85, 1096 AJ Amsterdam
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Tel: 020 665 7148 fax: 020 665 7279 <A HREF="http://www.sitebysite.nl/">http://www.sitebysite.nl/</A>
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<P>--
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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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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Snapscan%20backend&In-Reply-To=<391E76C6.E052016C@sitebysite.nl>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0100.html">Petter Reinholdtsen: "Sane BeOS port (Was: Sane port)"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0098.html">Louis van Dompselaar: "Re: Snapscan backend"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0097.html">Steve Underwood: "Re: Snapscan backend"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0098.html">Louis van Dompselaar: "Re: Snapscan backend"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Sun May 14 2000 - 02:43:48 PDT</EM>
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