diff options
| author | Mattia Rizzolo <mattia@mapreri.org> | 2014-10-03 14:05:01 +0000 |
|---|---|---|
| committer | Mattia Rizzolo <mattia@mapreri.org> | 2014-10-03 14:05:01 +0000 |
| commit | e7e90b72fd3161c5d55fed49e100781dfa3e9408 (patch) | |
| tree | 67cfcfae6b9a9e15701a332dfacbe0ca6440f16c /doc/sane-xsane-setup-enhancement-doc.html | |
| parent | 2d113e8792747151bf5d830f1a1485f2f951f940 (diff) | |
Imported Upstream version 0.84upstream/0.84
Diffstat (limited to 'doc/sane-xsane-setup-enhancement-doc.html')
| -rw-r--r-- | doc/sane-xsane-setup-enhancement-doc.html | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/doc/sane-xsane-setup-enhancement-doc.html b/doc/sane-xsane-setup-enhancement-doc.html new file mode 100644 index 0000000..5827198 --- /dev/null +++ b/doc/sane-xsane-setup-enhancement-doc.html @@ -0,0 +1,195 @@ +<html> +<head> + <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> + <meta name="Author" content="Oliver Rauch"> + <meta name="Description" content="scan, photocopy and fax frontend for SANE"> + <title>XSane - Enhancement setup</title> +</head> +<body text="#000000" bgcolor="#FFFFFF" link="#0000EF" vlink="#51188E" alink="#FF0000"> + + +<table> +<tr> +<td width=200> +<img SRC="xsane-logo2.jpg" alt="XSane-logo" hspace=30 align=TOP> +</td> +<td> +<blockquote> +<h1><font color="#009900">Enhancement setup</font></h1> +</blockquote> +</td> +</tr> +</table> + + +<hr WIDTH="100%"> + +<table> +<tr> +<td valign=TOP width="200" bgcolor="#E0E0BA"> +<br> +<a href="sane-xsane-doc.html">Index</a> +<br> +<br> +<br> +<font color="#000000">Main window:</font> +<ul> +<li><a href="sane-xsane-viewer-doc.html">Viewer mode</a></li> +<li><a href="sane-xsane-save-doc.html">Save mode</a></li> +<li><a href="sane-xsane-copy-doc.html">Copy mode</a></li> +<li><a href="sane-xsane-fax-doc.html">Fax mode</a></li> +<li><a href="sane-xsane-mail-doc.html">Mail mode</a></li> +<li><a href="sane-xsane-gimp-doc.html">Gimp plugin</a></li> +</ul> +<br> +<a href="sane-xsane-color-correction-doc.html">Color correction:</a> +<ul> +<li><a href="sane-xsane-color-correction-doc.html#GAMMA">Gamma correction</a></li> +<li><a href="sane-xsane-color-correction-doc.html#BRIGHTNESS">Brightness</a></li> +<li><a href="sane-xsane-color-correction-doc.html#CONTRAST">Contrast</a></li> +<li><a href="sane-xsane-color-correction-doc.html#THRESHOLD">Threshold</a></li> +<li><a href="sane-xsane-color-correction-doc.html#RGB_DEFAULT">RGB default</a></li> +<li><a href="sane-xsane-color-correction-doc.html#NEGATIVE">Negative</a></li> +<li><a href="sane-xsane-color-correction-doc.html#AUTOENHANCEMENT">Autoenhancement</a></li> +<li><a href="sane-xsane-color-correction-doc.html#ENHANCEMENT_DEFAULT">Default</a></li> +<li><a href="sane-xsane-color-correction-doc.html#RESTORE_ENHANCEMENT">Restore</a></li> +<li><a href="sane-xsane-color-correction-doc.html#STORE_ENHANCEMENT">Store</a></li> +<li><a href="sane-xsane-histogram-doc.html">Histogram window</a></li> +<li><a href="sane-xsane-preview-doc.html#PIPETTE_WHITE">Pipette functions</a></li> +</ul> +<br> +<a href="sane-xsane-standard-doc.html">Standard options window</a> +<br> +<br> +<br> +<a href="sane-xsane-advanced-doc.html">Advanced options window</a> +<br> +<br> +<br> +<a href="sane-xsane-preview-doc.html">Preview:</a> +<ul> +<li><a href="sane-xsane-preview-doc.html#PIPETTE_WHITE">Pipette white</a></li> +<li><a href="sane-xsane-preview-doc.html#PIPETTE_GRAY">Pipette gray</a></li> +<li><a href="sane-xsane-preview-doc.html#PIPETTE_BLACK">Pipette black</a></li> +<li><a href="sane-xsane-preview-doc.html#UNZOOM">Unzoom</a></li> +<li><a href="sane-xsane-preview-doc.html#ZOOM_OUT">Zoom out</a></li> +<li><a href="sane-xsane-preview-doc.html#ZOOM_IN">Zoom in</a></li> +<li><a href="sane-xsane-preview-doc.html#UNDO_ZOOM">Undo zoom</a></li> +<li><a href="sane-xsane-preview-doc.html#AUTOSELECT">Autoselect scanarea</a></li> +<li><a href="sane-xsane-preview-doc.html#SELECT_VISIBLE_AREA">Select visible area</a></li> +<li><a href="sane-xsane-preview-doc.html#SELECT_SCAN_AREA">Select scanarea</a></li> +<li><a href="sane-xsane-preview-doc.html#MOVE_SCAN_AREA">Move scanarea</a></li> +<li><a href="sane-xsane-preview-doc.html#DELETE_PREVIEW_CACHE">Delete preview cache</a></li> +</ul> +<br> +<font color="#000000">Setup:</font> +<ul> +<li><a href="sane-xsane-setup-copy-doc.html">Copy setup</a></li> +<li><a href="sane-xsane-setup-display-doc.html">Display setup</a></li> +<li><a href="sane-xsane-setup-enhancement-doc.html">Enhancement setup</a></li> +<li><a href="sane-xsane-setup-fax-doc.html">Fax setup</a></li> +<li><a href="sane-xsane-setup-image-doc.html">Image setup</a></li> +<li><a href="sane-xsane-setup-mail-doc.html">Mail setup</a></li> +<li><a href="sane-xsane-setup-save-doc.html">Saving setup</a></li> +</ul> +</td> + + + +<td VALIGN=TOP BGCOLOR="#FFFFFF"> +<blockquote> +<br> +You open the setup window via the menu <i>preferences/setup</i> in the +main window of xsane. +<br> +<br> +<br> +<center><img SRC="xsane-setup-enhancement.jpg" alt="XSane-setup-enhancement-window"></center> +<br> +<br> +<h4>THRESHOLD OPTION:</h4> +<blockquote> +There are three options available: +<ul> +<li><b>Standard options window (lineart)</b></li> +</ul> +<blockquote> +The threshold option is kept untouched. If the backend makes +available a "threshold" option you find it in the standard or advanced +options window. You have to do a new preview scan to see changes of the +threshold value. +</blockquote> + +<ul> +<li><b>XSane main window (lineart)</b></li> +</ul> +<blockquote> +If the backend makes available a "threshold" option it is moved +to the main window. The value range is normalized (see +<i>THRESHOLD MINIMUM, MAXIMUM, MULTIPLIER, OFFSET</i>). +You have to do a new preview scan to see changes of the threshold value. +</blockquote> + +<ul> +<li><b>XSane main window (grayscale->lineart)</b></li> +</ul> +<blockquote> +If the backend makes available a "threshold" option it is moved +to the main window. The preview scan is done in grayscale mode (see +<i>NAME OF GRAYSCALE SCANMODE</i>) and transformed to black/white. Changes +of the threshold value are visible in the preview window without a new preview +scan. The value range of the threshold option is normalized (see +<i>THRESHOLD MINIMUM, MAXIMUM, MULTIPLIER, OFFSET</i>). +</blockquote> +</blockquote> +</blockquote> + +<h4>THRESHOLD MINIMUM, MAXIMUM, MULTIPLIER, OFFSET:</h4> +<blockquote> +These values are used to make the threshold function of the +backends work the same way XSane does handle it. This is: +<b>the threshold value defines the brightness level in % that is needed +to get a white point. A value of 0% creates a totally white image, a value +of 100% creates a totally black image.</b> +<br> +If the threshold function of the backend does not cover the full range +(0-100% = white...black), you can reduce the range with the values MINIMUM +and MAXIMUM. If the backend defines another value range (e.g 0-255 ) you +have to enter a MULTIPLIER (2.55 for rang 0-255), with the OFFSET value +you can shift the range linear. +<br> +<br> +<b>The calculation is:</b> +<blockquote> +<b>backend_threshold = OFFSET + MULTIPLIER * xsane_threshold</b> +</blockquote> +<b>where the user can select xsane_threshold in the range from MINIMUM to MAXIMUM.</b> +</blockquote> + +<h4>NAME OF GRAYSCALE SCANMODE:</h4> +<blockquote> +If you want to do a grayscale previewscan when lineart scanmode +is selected, you have to tell xsane the name of the grayscale mode. This +is because the scanmode is defined by the backend and differen backends +may use different names. You have to enter the original name (not translated) +case sensitive (take a look at the scanmode selection menu in the xsane +main window). +<br> +The name should be something like +<blockquote> +<b><i>Gray</i></b> +</blockquote> + +</blockquote> +</td> +</tr> +</table> + +<hr WIDTH="100%"> + +<blockquote> +Author: <a href="mailto:Oliver.Rauch@xsane.org">Oliver Rauch</a> +</blockquote> + +</body> +</html> |