kopia lustrzana https://gitlab.com/sane-project/backends
311 wiersze
6.8 KiB
HTML
311 wiersze
6.8 KiB
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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<META NAME="GENERATOR" CONTENT="Mozilla/4.05 [en] (X11; I; Linux 2.0.36 i586) [Netscape]">
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<META NAME="Author" CONTENT="Oliver Rauch">
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<META NAME="Keywords" CONTENT="umax,scanner,driver,linux,unix,os/2">
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<TITLE>sane-umax documentation</TITLE>
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</HEAD>
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<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#0000EF" VLINK="#51188E" ALINK="#FF0000">
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<CENTER>
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<H1>
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<IMG SRC="sane-logo.gif" HEIGHT=300 WIDTH=256></H1></CENTER>
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<CENTER><IMG SRC="sane-umax-text.gif" HEIGHT=45 WIDTH=157></CENTER>
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<CENTER> </CENTER>
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<CENTER>
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<HR WIDTH="100%"></CENTER>
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<CENTER>
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<H1>
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SANE-BACKEND FOR UMAX SCANNERS</H1></CENTER>
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<CENTER>
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<HR WIDTH="100%"></CENTER>
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<H2>
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<B>FRONTEND FUNCTIONS AND OPTIONS:</B></H2>
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<BLOCKQUOTE>This backend dynamically enabeles the options that are supported
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by the scanner in dependence of the scanning-mode and other options. Here
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is an example of the frontend <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-xsane.html"><I>x</I>sane</A>
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:</BLOCKQUOTE>
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<CENTER> </CENTER>
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<CENTER><IMG SRC="sane-umax.gif" HEIGHT=443 WIDTH=306> <IMG SRC="sane-umax-histogram.gif" HEIGHT=369 WIDTH=280></CENTER>
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<CENTER> </CENTER>
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<BR>
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<H3>
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Scan modes:</H3>
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<CENTER><TABLE BORDER=2 CELLSPACING=2 CELLPADDING=2 WIDTH="700" >
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<TR BGCOLOR="#40E0D0">
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<TD><B>Mode</B></TD>
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<TD><B>Remark</B></TD>
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</TR>
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<TR>
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<TD>Lineart</TD>
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<TD>1 bit/pixel black/white mode</TD>
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</TR>
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<TR>
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<TD>Halftone</TD>
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<TD>1 bit/pixel dithered black/white mode</TD>
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</TR>
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<TR>
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<TD>Grayscale</TD>
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<TD>8 / 10 / 12 / 14 bits/pixel gray mode</TD>
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</TR>
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<TR>
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<TD>Color</TD>
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<TD>24 / 30 / 36 / 42 bits/pixel RGB mode</TD>
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</TR>
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</TABLE></CENTER>
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<BR>
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<H3>
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Scan sources:</H3>
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<CENTER><TABLE BORDER=2 CELLSPACING=2 CELLPADDING=2 WIDTH="300" NOSAVE >
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<TR BGCOLOR="#40E0D0">
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<TD B>Scan sources</TD>
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</TR>
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<TR>
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<TD>Flatbed</TD>
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</TR>
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<TR>
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<TD>Transparency adapter (UTA)</TD>
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</TR>
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<TR>
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<TD>Automatic document feeder (ADF)</TD>
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</TR>
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</TABLE></CENTER>
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<BR>
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<H3>
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Standard options:</H3>
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<CENTER><IMG SRC="sane-umax-standard.gif" HEIGHT=272 WIDTH=309></CENTER>
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<CENTER> </CENTER>
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<CENTER> </CENTER>
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<CENTER><TABLE BORDER=2 CELLSPACING=2 CELLPADDING=2 WIDTH="700" >
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<TR BGCOLOR="#40E0D0">
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<TD><B>Standard options</B></TD>
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<TD><B>Remark</B></TD>
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</TR>
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<TR>
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<TD>Analog <A HREF="http://www.mostang.com/sane/sane-gamma.html">gamma</A>
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correction</TD>
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<TD>analog gamma correction doesn't reduce the number of used colors! Value
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between 1 and 2, only supported by Supervista S12</TD>
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</TR>
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<TR>
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<TD>Highlight</TD>
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<TD>only supported by some scanners</TD>
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</TR>
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<TR>
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<TD>Shadow</TD>
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<TD>only supported by some scanners</TD>
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</TR>
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<TR>
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<TD>Contrast</TD>
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<TD>only available in halftone-mode</TD>
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</TR>
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<TR>
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<TD>Brightness</TD>
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<TD>only available in halftone-mode</TD>
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</TR>
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<TR>
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<TD>Threshold</TD>
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<TD>only available in lineart-mode</TD>
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</TR>
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<TR>
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<TD>Custom <A HREF="http://www.mostang.com/sane/sane-gamma.html">gamma</A>
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table</TD>
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<TD>digital gamma correction, for color/intensity enhancement! Side-effect:
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may reduce the number of used colors!</TD>
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</TR>
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<TR>
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<TD>Quality calibration</TD>
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<TD>For a quality white calibration. For some scanners the driver has to
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do this calibration, because I do not know all used calibartion-modes,
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the driver may hang if you select this option! Take a look at the advanced
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option <I>Shading type</I>, this defines how the calibration is done if
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the backend has to do the calibration!</TD>
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</TR>
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<TR>
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<TD>Negative scan</TD>
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<TD>Inverts color-intensity, for scanning negatives</TD>
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</TR>
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<TR>
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<TD>Bit depth</TD>
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<TD>Image depth in bits/sample the scanner sends to the computer, normally
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8 in grayscale and color mode. Some scanners support more than 8bits/sample,
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but only few file formats support it. If your scanner supports more than
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8bis/sample you already get an improvement if you set the bit detpth to
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8 because the scanner internal gamma correction is done with the maximum
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available bit depth!!!</TD>
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</TR>
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<TR>
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<TD>Lamp warmup</TD>
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<TD>enable extended lamp-warmup </TD>
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</TR>
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</TABLE></CENTER>
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<BR>
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<H3>
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Advanced Options:</H3>
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<CENTER><IMG SRC="sane-umax-advanced.gif" HEIGHT=235 WIDTH=291></CENTER>
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<CENTER> </CENTER>
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<CENTER> </CENTER>
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<CENTER><TABLE BORDER=2 CELLSPACING=2 CELLPADDING=2 WIDTH="700" >
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<TR BGCOLOR="#40E0D0">
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<TD><B>Advanced options</B></TD>
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<TD><B>Remark</B></TD>
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</TR>
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<TR>
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<TD>Set exposure time</TD>
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<TD>Enable selection of exposure time, if not enabled, scanner uses default
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values.</TD>
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</TR>
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<TR>
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<TD>Cal. exposure time</TD>
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<TD>Define exposure time for calibration, only supported by some scanners.</TD>
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</TR>
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<TR>
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<TD>Scan exposure time</TD>
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<TD>Define exposure time for scan, only supported by some scanners.</TD>
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</TR>
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<TR>
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<TD>Set lamp density</TD>
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<TD>Enable selection of lamp density, if not enabled, scanner automatically
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selects a value.</TD>
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</TR>
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<TR>
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<TD>Cal. lamp density</TD>
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<TD>Define lamp density for calibration, only supported by some scanners.</TD>
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</TR>
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<TR>
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<TD>Set scan lamp density</TD>
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<TD>Enable selection of lamp density for scan, if not enabled scanner uses
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the value that was used for calibration.</TD>
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</TR>
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<TR>
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<TD>Scan lamp density</TD>
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<TD>Define lamp density for scan, only supported by some scanners.</TD>
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</TR>
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<TR>
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<TD>Shading type</TD>
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<TD>Some scanners do the white calibration internally. Other scanners want
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the backend to calculate the data needed for white calibration, in this
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case this option defines how the backend calculates the data that is sent
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back to the scanner. Normally, this option is predefined correctly by the
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backend. If the white calibration is bad on your scanner, try to change
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this value. For most scanners it is ok to set this option to "calculate
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average", but for some scanners (Astra 6X0S, Vista S6E, may be others too),
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this option must be set to "calculate average and invert".</TD>
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</TR>
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</TABLE></CENTER>
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<BR>
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<P>
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<HR WIDTH="100%">
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<H2>
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BUGS:</H2>
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<BLOCKQUOTE>
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<LI>
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Resolutions greater than 600 dpi sometimes make problems</LI>
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</BLOCKQUOTE>
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<BR>
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<HR WIDTH="100%">
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<H2>
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AUTHOR: <FONT SIZE=+0><A HREF="mailto:Oliver.Rauch@Wolfsburg.DE">Oliver
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Rauch</A></FONT></H2>
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<HR WIDTH="100%">
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<CENTER><A HREF="sane-umax-scanners-doc.html">supported scanners</A>, <A HREF="sane-umax-config-doc.html">configuration</A></CENTER>
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<CENTER>
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<HR WIDTH="100%"></CENTER>
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<CENTER><A HREF="http://www.mostang.com/sane/">SANE-homepage</A>, <A HREF="http://www.mostang.com/sane/sane-backends.html">backends</A>,
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<A HREF="http://www.Wolfsburg.DE/~rauch">SANE-UMAX patches</A></CENTER>
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<CENTER>
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<HR WIDTH="100%"></CENTER>
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<CENTER><FONT COLOR="#009900">This page has been changed on 5th. april
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1999</FONT></CENTER>
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<BR>
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<BR>
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</BODY>
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</HTML>
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