1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>cvequalizehist: GStreamer Bad Plugins 1.0 Plugins Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer Bad Plugins 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-plugins-bad Elements"> 9<link rel="prev" href="gst-plugins-bad-plugins-cvdilate.html" title="cvdilate"> 10<link rel="next" href="gst-plugins-bad-plugins-cverode.html" title="cverode"> 11<meta name="generator" content="GTK-Doc V1.28 (XML mode)"> 12<link rel="stylesheet" href="style.css" type="text/css"> 13</head> 14<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 15<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> 16<td width="100%" align="left" class="shortcuts"> 17<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 18 <a href="#gst-plugins-bad-plugins-cvequalizehist.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#gst-plugins-bad-plugins-cvequalizehist.object-hierarchy" class="shortcut">Object Hierarchy</a></span> 20</td> 21<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 22<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 23<td><a accesskey="p" href="gst-plugins-bad-plugins-cvdilate.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 24<td><a accesskey="n" href="gst-plugins-bad-plugins-cverode.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 25</tr></table> 26<div class="refentry"> 27<a name="gst-plugins-bad-plugins-cvequalizehist"></a><div class="titlepage"></div> 28<div class="refnamediv"><table width="100%"><tr> 29<td valign="top"> 30<h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-cvequalizehist.top_of_page"></a>cvequalizehist</span></h2> 31<p>cvequalizehist</p> 32</td> 33<td class="gallery_image" valign="top" align="right"></td> 34</tr></table></div> 35<a name="GstCvEqualizeHist"></a><div class="refsect1"> 36<a name="gst-plugins-bad-plugins-cvequalizehist.other"></a><h2>Types and Values</h2> 37<div class="informaltable"><table class="informaltable" width="100%" border="0"> 38<colgroup> 39<col width="150px" class="name"> 40<col class="description"> 41</colgroup> 42<tbody><tr> 43<td class="datatype_keyword">struct</td> 44<td class="function_name"><a class="link" href="gst-plugins-bad-plugins-cvequalizehist.html#GstCvEqualizeHist-struct" title="struct GstCvEqualizeHist">GstCvEqualizeHist</a></td> 45</tr></tbody> 46</table></div> 47</div> 48<div class="refsect1"> 49<a name="gst-plugins-bad-plugins-cvequalizehist.object-hierarchy"></a><h2>Object Hierarchy</h2> 50<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 51 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 52 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 53 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 54 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseTransform.html#GstBaseTransform-struct">GstBaseTransform</a> 55 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoFilter.html#GstVideoFilter-struct">GstVideoFilter</a> 56 <span class="lineart">╰──</span> GstOpencvVideoFilter 57 <span class="lineart">╰──</span> GstCvEqualizeHist 58</pre> 59</div> 60<div class="refsect1"> 61<a name="gst-plugins-bad-plugins-cvequalizehist.description"></a><h2>Description</h2> 62<p>Equalizes the histogram of a grayscale image with the cvEqualizeHist OpenCV 63function.</p> 64<div class="refsect2"> 65<a name="id-1.2.46.6.3"></a><h3>Example launch line</h3> 66<div class="informalexample"> 67 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 68 <tbody> 69 <tr> 70 <td class="listing_lines" align="right"><pre>1</pre></td> 71 <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> videotestsrc pattern<span class="gtkdoc opt">=</span><span class="number">23</span> <span class="gtkdoc opt">!</span> cvequalizehist <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td> 72 </tr> 73 </tbody> 74 </table> 75</div> 76 77</div> 78<div class="refsynopsisdiv"> 79<h2>Synopsis</h2> 80<div class="refsect2"> 81<a name="id-1.2.46.6.4.1"></a><h3>Element Information</h3> 82<div class="variablelist"><table border="0" class="variablelist"> 83<colgroup> 84<col align="left" valign="top"> 85<col> 86</colgroup> 87<tbody> 88<tr> 89<td><p><span class="term">plugin</span></p></td> 90<td> 91 <a class="link" href="gst-plugins-bad-plugins-plugin-opencv.html#plugin-opencv">opencv</a> 92 </td> 93</tr> 94<tr> 95<td><p><span class="term">author</span></p></td> 96<td>Thiago Santos<thiago.sousa.santos@collabora.co.uk></td> 97</tr> 98<tr> 99<td><p><span class="term">class</span></p></td> 100<td>Transform/Effect/Video</td> 101</tr> 102</tbody> 103</table></div> 104</div> 105<hr> 106<div class="refsect2"> 107<a name="id-1.2.46.6.4.2"></a><h3>Element Pads</h3> 108<div class="variablelist"><table border="0" class="variablelist"> 109<colgroup> 110<col align="left" valign="top"> 111<col> 112</colgroup> 113<tbody> 114<tr> 115<td><p><span class="term">name</span></p></td> 116<td>sink</td> 117</tr> 118<tr> 119<td><p><span class="term">direction</span></p></td> 120<td>sink</td> 121</tr> 122<tr> 123<td><p><span class="term">presence</span></p></td> 124<td>always</td> 125</tr> 126<tr> 127<td><p><span class="term">details</span></p></td> 128<td>video/x-raw, format=(string)GRAY8, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> 129</tr> 130</tbody> 131</table></div> 132<div class="variablelist"><table border="0" class="variablelist"> 133<colgroup> 134<col align="left" valign="top"> 135<col> 136</colgroup> 137<tbody> 138<tr> 139<td><p><span class="term">name</span></p></td> 140<td>src</td> 141</tr> 142<tr> 143<td><p><span class="term">direction</span></p></td> 144<td>source</td> 145</tr> 146<tr> 147<td><p><span class="term">presence</span></p></td> 148<td>always</td> 149</tr> 150<tr> 151<td><p><span class="term">details</span></p></td> 152<td>video/x-raw, format=(string)GRAY8, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> 153</tr> 154</tbody> 155</table></div> 156</div> 157</div> 158</div> 159<div class="refsect1"> 160<a name="gst-plugins-bad-plugins-cvequalizehist.functions_details"></a><h2>Functions</h2> 161<p></p> 162</div> 163<div class="refsect1"> 164<a name="gst-plugins-bad-plugins-cvequalizehist.other_details"></a><h2>Types and Values</h2> 165<div class="refsect2"> 166<a name="GstCvEqualizeHist-struct"></a><h3>struct GstCvEqualizeHist</h3> 167<pre class="programlisting">struct GstCvEqualizeHist;</pre> 168</div> 169</div> 170</div> 171<div class="footer"> 172<hr>Generated by GTK-Doc V1.28</div> 173</body> 174</html>
