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-enhancement-doc.html | |
| parent | 2d113e8792747151bf5d830f1a1485f2f951f940 (diff) | |
Imported Upstream version 0.84upstream/0.84
Diffstat (limited to 'doc/sane-xsane-enhancement-doc.html')
| -rw-r--r-- | doc/sane-xsane-enhancement-doc.html | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/doc/sane-xsane-enhancement-doc.html b/doc/sane-xsane-enhancement-doc.html deleted file mode 100644 index 32c1d05..0000000 --- a/doc/sane-xsane-enhancement-doc.html +++ /dev/null @@ -1,101 +0,0 @@ -<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> -<html> -<head> - <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> - <meta name="GENERATOR" content="Mozilla/4.6 [en] (X11; I; Linux 2.2.11 i586) [Netscape]"> - <meta name="Author" content="Oliver Rauch"> - <meta name="Description" content="scan, photocopy and fax frontend for SANE"> - <title>XSane - Enhancement</title> -</head> -<body text="#000000" bgcolor="#FFFFFF" link="#0000EF" vlink="#51188E" alink="#FF0000"> - -<dd> -<img SRC="xsane-logo2.jpg" height=150 width=128 align=LEFT></dd> - -<br> -<blockquote> -<h1> -<u><font color="#009900">Enhancement</font></u></h1> -XSane uses a gamma table to do the following enhancement functions. If -the scanner supports a custom gamma table (and the option is enabled) XSane -uses the scanner internal gamma table with the scanner's maximum bit depth.</blockquote> - -<center><img SRC="sane-xsane.jpg" height=416 width=270></center> - -<blockquote> -<dt> -<img SRC="gamma.jpg" height=21 width=22><a NAME="GAMMA"></a><b> Gamma correction:</b></dt> - -<blockquote>The gamma correction is a non linear correction. Black keeps -black and white keeps white -<blockquote>if the gamma value is greater than 1.0 the gray intensities -are brightned -<br>if the gamma value is smaller than 1.0 the gray intensities are darkend</blockquote> -</blockquote> - -<dt> -<img SRC="brightness.jpg" height=21 width=22><a NAME="BRIGHTNESS"></a><b> Brightness:</b></dt> - -<blockquote>positive values increase the brightness of the image. All values -are increased by the same value. 100% means a shift of the half value range -(on 8 bits (256 values) this means a shift of 128).</blockquote> - -<dt> -<img SRC="contrast.jpg" height=21 width=22><a NAME="CONTRAST"></a><b> Contrast:</b></dt> - -<blockquote>positive values increase the contrast of the image. Medium -gray keeps medium gray (8 bits: 128) -<blockquote>-100% means that all colors become medium gray -<br>+100% means that the difference between a value and medium gray is -doubled</blockquote> -</blockquote> - -<dt> -<img SRC="rgb-default.jpg" height=26 width=26><a NAME="RGB_DEFAULT"></a><b> RGB default:</b></dt> - -<blockquote>if RGB default is activated, all values for the color components -(red, green and blue) are set to the default values (gamma=1.0, brightness=0%, -contrast=0%). If you deactivate it, you can set different enhancement values -for each color.</blockquote> - -<dt> -<img SRC="negative.jpg" height=26 width=26><a NAME="NEGATIVE"></a><b> Negative:</b></dt> - -<blockquote>This option inverts the intensities (black <-> white). -It is for scanning negatives. -<p>Negatives do not only have inverted colors, it also is necessary -to do a color correction for each color component because the negatives -have very different color ranges for each color.</blockquote> - -<dt> -<img SRC="autoenhance.jpg" height=26 width=26><a NAME="AUTO_ENHANCEMENT"></a><b> Autoenhancement:</b></dt> - -<blockquote>If you press this button XSane tries to set good values -for brightness, contrast and gamma correction independance of the selected -part in the preview window. This does work quiet well for brightness and -contrast, but the gamma correction normally has to be corrected manually.</b> -<br>If RGB default is disabled, the components for each color are set -individually.</blockquote> - -<img SRC="default.jpg" height=26 width=26><a NAME="ENHANCEMENT_DEFAULT"></a><b> Enhancement default:</b> -<blockquote>Sets the enhancement values to default: gamma=1.0, brightness=0%, -contrast=0%.</blockquote> - -<dt> -<img SRC="restore.jpg" height=26 width=26><a NAME="RESTORE_ENHANCEMENT"></a><b> Restore enhancement:</b></dt> - -<blockquote>Restores the enhancement values from preferences.</blockquote> - -<dt> -<img SRC="store.jpg" height=26 width=26><a NAME="MEMORY_ENHANCEMENT"></a><b> Store enhancement (Memory):</b></dt> - -<blockquote>tore selected enhancement values to preferences.</blockquote> -</blockquote> - -<center> -<hr WIDTH="100%"> -<br><b><a href="../../c/sane/xsane/doc/sane-xsane-doc.html">INDEX</a></b></center> - -<p><br> -</body> -</html> |