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<TITLE>sane-devel: Re: Can thumbnails be included in jpeg images gener</TITLE>
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<META NAME="Author" CONTENT="Stephen Williams (steve@icarus.com)">
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<META NAME="Subject" CONTENT="Re: Can thumbnails be included in jpeg images generated by xsane?">
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<H1>Re: Can thumbnails be included in jpeg images generated by xsane?</H1>
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<STRONG>From:</STRONG> Stephen Williams (<A HREF="mailto:steve@icarus.com?Subject=Re:%20Can%20thumbnails%20be%20included%20in%20jpeg%20images%20generated%20by%20xsane?&In-Reply-To=<200003220404.UAA24550@icarus.com>"><EM>steve@icarus.com</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Mar 21 2000 - 20:04:02 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0235.html">John Gay: "How can I get sane to recognise my scanner if I turn it on AFTER the PC?"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0233.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0233.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0236.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0236.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<A HREF="mailto:njl98r@ecs.soton.ac.uk?Subject=Re:%20Can%20thumbnails%20be%20included%20in%20jpeg%20images%20generated%20by%20xsane?&In-Reply-To=<200003220404.UAA24550@icarus.com>">njl98r@ecs.soton.ac.uk</A> said:
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<BR>
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<EM>> There is no thumbnail in the JFIF file format, nor in the JPEG
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</EM><BR>
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<EM>> standard itself.
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</EM><BR>
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<P>Yes there is.
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<BR>
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<P>In the first APP0 marker there are Xthumbnail and Ythumbnail fields to
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<BR>
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specify the dimensions of the thumbnail. That is then followed by
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<BR>
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3*X*Y bytes of RGB thumbnail data.
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<BR>
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<PRE>
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--
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Steve Williams "The woods are lovely, dark and deep.
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<A HREF="mailto:steve@icarus.com?Subject=Re:%20Can%20thumbnails%20be%20included%20in%20jpeg%20images%20generated%20by%20xsane?&In-Reply-To=<200003220404.UAA24550@icarus.com>">steve@icarus.com</A> But I have promises to keep,
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<A HREF="mailto:steve@picturel.com?Subject=Re:%20Can%20thumbnails%20be%20included%20in%20jpeg%20images%20generated%20by%20xsane?&In-Reply-To=<200003220404.UAA24550@icarus.com>">steve@picturel.com</A> and lines to code before I sleep,
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<A HREF="http://www.picturel.com">http://www.picturel.com</A> And lines to code before I sleep."
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<P><P><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:%20Can%20thumbnails%20be%20included%20in%20jpeg%20images%20generated%20by%20xsane?&In-Reply-To=<200003220404.UAA24550@icarus.com>">majordomo@mostang.com</A>
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<LI><STRONG>Next message:</STRONG> <A HREF="0235.html">John Gay: "How can I get sane to recognise my scanner if I turn it on AFTER the PC?"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0233.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0233.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0236.html">Nick Lamb: "Re: Can thumbnails be included in jpeg images generated by xsane?"</A>
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