sane-project-website/old-archive/2000-10/0031.html

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<TITLE>sane-devel: Re: Patch for sane.tex (image polarity)</TITLE>
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<H1>Re: Patch for sane.tex (image polarity)</H1>
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:hmg-ml@gmx.de?Subject=Re:%20Patch%20for%20sane.tex%20(image%20polarity)&In-Reply-To=&lt;20001003205738.A372@hmg1.vortex.swb.de&gt;"><EM>hmg-ml@gmx.de</EM></A>)<BR>
<STRONG>Date:</STRONG> Tue Oct 03 2000 - 11:57:38 PDT
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Hi,
<BR>
<P>On Tue, Oct 03, 2000 at 06:54:55PM +0100, Collins, Martin wrote:
<BR>
<EM>&gt; I may have got the wrong end of the stick here, are you
</EM><BR>
<EM>&gt; (and David) suggesting that 1-bit lineart not be supported?
</EM><BR>
<P>No. We are talking about color lineart/halftone. 1 bit per color --&gt; three
<BR>
bit per pixel.
<BR>
<P><EM>&gt; When I try lineart (with calibration switched on so it works)
</EM><BR>
<EM>&gt; with my Mustek A3 Pro I get a grey-scale file. Xsane says
</EM><BR>
<EM>&gt; the file size will be 1MB as I would expect for 1-bit but
</EM><BR>
<EM>&gt; the pnm created is 8MB grey.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Now, I plan to scan a lot of black &amp; white stuff , so yes,
</EM><BR>
<EM>&gt; somebody really needs 1-bit color!
</EM><BR>
<P>With 1-bit color I mean: Color mode (RGB) but only one bit per color not 8
<BR>
or 16 as usual. Nobody wants to remove the &quot;normal&quot; (black/white) lineart
<BR>
modes.
<BR>
<P>Bye,
<BR>
&nbsp;&nbsp;Henning
<BR>
<P><PRE>
--
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