<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta name="robots" content="noindex">
<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>ITK: itkConnectedComponentAlgorithm.h Source File</title>
<link href="DoxygenStyle.css" rel="stylesheet" type="text/css">
</head><body bgcolor="#ffffff">
<!-- Section customized for INSIGHT : Tue Jul 17 01:02:45 2001 -->
<center>
<a href="index.html" class="qindex">Main Page</a>
<a href="modules.html" class="qindex">Groups</a>
<a href="namespaces.html" class="qindex">Namespace List</a>
<a href="hierarchy.html" class="qindex">Class Hierarchy</a>
<a href="classes.html" class="qindex">Alphabetical List</a>
<a href="annotated.html" class="qindex">Compound List</a>
<a href="files.html" class="qindex">File
List</a>
<a href="namespacemembers.html" class="qindex">Namespace Members</a>
<a href="functions.html" class="qindex">Compound Members</a>
<a href="globals.html" class="qindex">File Members</a>
<a href="pages.html" class="qindex">Concepts</a></center>
<!-- Generated by Doxygen 1.5.9 -->
<div class="navpath"><a class="el" href="dir_02e23d841c198393a6e961e9a0678fff.html">Code</a> » <a class="el" href="dir_00ffda33c24cbbf617b202f4f3bcb7e8.html">BasicFilters</a>
</div>
<div class="contents">
<h1>itkConnectedComponentAlgorithm.h</h1><a href="itkConnectedComponentAlgorithm_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*=========================================================================</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment"> Program: Insight Segmentation & Registration Toolkit</span>
<a name="l00004"></a>00004 <span class="comment"> Module: $RCSfile: itkConnectedComponentAlgorithm.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2008-10-13 18:54:27 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.3 $</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> Copyright (c) Insight Software Consortium. All rights reserved.</span>
<a name="l00010"></a>00010 <span class="comment"> See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment"> This software is distributed WITHOUT ANY WARRANTY; without even </span>
<a name="l00013"></a>00013 <span class="comment"> the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR </span>
<a name="l00014"></a>00014 <span class="comment"> PURPOSE. See the above copyright notices for more information.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">=========================================================================*/</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#ifndef __itkConnectedComponentAlgorithm_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define __itkConnectedComponentAlgorithm_h</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="itkImage_8h.html">itkImage.h</a>"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="itkConstShapedNeighborhoodIterator_8h.html">itkConstShapedNeighborhoodIterator.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="itkShapedNeighborhoodIterator_8h.html">itkShapedNeighborhoodIterator.h</a>"</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="keyword">namespace </span>itk
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <span class="keyword">template</span>< <span class="keyword">class</span> TIterator >
<a name="l00028"></a>00028 TIterator*
<a name="l00029"></a><a class="code" href="namespaceitk.html#9f1049dfa8f441edc2d7214e018bdfa8">00029</a> <a class="code" href="namespaceitk.html#9f1049dfa8f441edc2d7214e018bdfa8">setConnectivity</a>( TIterator* it, <span class="keywordtype">bool</span> fullyConnected=<span class="keyword">false</span> )
<a name="l00030"></a>00030 {
<a name="l00031"></a>00031 <span class="keyword">typename</span> TIterator::OffsetType offset;
<a name="l00032"></a>00032 it->ClearActiveList();
<a name="l00033"></a>00033 <span class="keywordflow">if</span>( !fullyConnected)
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="comment">// only activate the neighbors that are face connected</span>
<a name="l00036"></a>00036 <span class="comment">// to the current pixel. do not include the center pixel</span>
<a name="l00037"></a>00037 offset.Fill( 0 );
<a name="l00038"></a>00038 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=0; d < TIterator::Dimension; ++d )
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 offset[d] = -1;
<a name="l00041"></a>00041 it->ActivateOffset( offset );
<a name="l00042"></a>00042 offset[d] = 1;
<a name="l00043"></a>00043 it->ActivateOffset( offset );
<a name="l00044"></a>00044 offset[d] = 0;
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047 <span class="keywordflow">else</span>
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 <span class="comment">// activate all neighbors that are face+edge+vertex</span>
<a name="l00050"></a>00050 <span class="comment">// connected to the current pixel. do not include the center pixel</span>
<a name="l00051"></a>00051 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> centerIndex = it->GetCenterNeighborhoodIndex();
<a name="l00052"></a>00052 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=0; d < centerIndex*2 + 1; d++ )
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 offset = it->GetOffset( d );
<a name="l00055"></a>00055 it->ActivateOffset( offset );
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 offset.Fill(0);
<a name="l00058"></a>00058 it->DeactivateOffset( offset );
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 <span class="keywordflow">return</span> it;
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keyword">template</span>< <span class="keyword">class</span> TIterator >
<a name="l00064"></a>00064 TIterator*
<a name="l00065"></a><a class="code" href="namespaceitk.html#55f1597161f6eb108ca516c086f7e4d4">00065</a> <a class="code" href="namespaceitk.html#55f1597161f6eb108ca516c086f7e4d4">setConnectivityPrevious</a>( TIterator* it, <span class="keywordtype">bool</span> fullyConnected=<span class="keyword">false</span> )
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="comment">// activate the "previous" neighbours</span>
<a name="l00068"></a>00068 <span class="keyword">typename</span> TIterator::OffsetType offset;
<a name="l00069"></a>00069 it->ClearActiveList();
<a name="l00070"></a>00070 <span class="keywordflow">if</span>( !fullyConnected)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="comment">// only activate the neighbors that are face connected</span>
<a name="l00073"></a>00073 <span class="comment">// to the current pixel. do not include the center pixel</span>
<a name="l00074"></a>00074 offset.Fill( 0 );
<a name="l00075"></a>00075 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=0; d < TIterator::Dimension; ++d )
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 offset[d] = -1;
<a name="l00078"></a>00078 it->ActivateOffset( offset );
<a name="l00079"></a>00079 offset[d] = 0;
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 <span class="keywordflow">else</span>
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="comment">// activate all neighbors that are face+edge+vertex</span>
<a name="l00085"></a>00085 <span class="comment">// connected to the current pixel. do not include the center pixel</span>
<a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> centerIndex = it->GetCenterNeighborhoodIndex();
<a name="l00087"></a>00087 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=0; d < centerIndex; d++ )
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 offset = it->GetOffset( d );
<a name="l00090"></a>00090 it->ActivateOffset( offset );
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092 offset.Fill(0);
<a name="l00093"></a>00093 it->DeactivateOffset( offset );
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 <span class="keywordflow">return</span> it;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="keyword">template</span>< <span class="keyword">class</span> TIterator >
<a name="l00099"></a>00099 TIterator*
<a name="l00100"></a><a class="code" href="namespaceitk.html#21dc8fc89ac48be996767b48e6cd8c58">00100</a> <a class="code" href="namespaceitk.html#21dc8fc89ac48be996767b48e6cd8c58">setConnectivityLater</a>( TIterator* it, <span class="keywordtype">bool</span> fullyConnected=<span class="keyword">false</span> )
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="comment">// activate the "later" neighbours</span>
<a name="l00103"></a>00103 <span class="keyword">typename</span> TIterator::OffsetType offset;
<a name="l00104"></a>00104 it->ClearActiveList();
<a name="l00105"></a>00105 <span class="keywordflow">if</span>( !fullyConnected)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 <span class="comment">// only activate the neighbors that are face connected</span>
<a name="l00108"></a>00108 <span class="comment">// to the current pixel. do not include the center pixel</span>
<a name="l00109"></a>00109 offset.Fill( 0 );
<a name="l00110"></a>00110 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=0; d < TIterator::Dimension; ++d )
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 offset[d] = 1;
<a name="l00113"></a>00113 it->ActivateOffset( offset );
<a name="l00114"></a>00114 offset[d] = 0;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 <span class="keywordflow">else</span>
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="comment">// activate all neighbors that are face+edge+vertex</span>
<a name="l00120"></a>00120 <span class="comment">// connected to the current pixel. do not include the center pixel</span>
<a name="l00121"></a>00121 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> centerIndex = it->GetCenterNeighborhoodIndex();
<a name="l00122"></a>00122 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d=centerIndex+1; d < 2*centerIndex+1; d++ )
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 offset = it->GetOffset( d );
<a name="l00125"></a>00125 it->ActivateOffset( offset );
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127 offset.Fill(0);
<a name="l00128"></a>00128 it->DeactivateOffset( offset );
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 <span class="keywordflow">return</span> it;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="preprocessor">#endif</span>
<a name="l00137"></a>00137 <span class="preprocessor"></span>
</pre></div></div>
<hr><address><small>
Generated at Thu May 7 22:27:38 2009 for ITK by <a href="http://www.stack.nl/~dimitri/doxygen/index.html"> <img
src="http://www.stack.nl/~dimitri/doxygen/doxygen.png" alt="doxygen"
align="middle" border=0 width=110 height=53>
</a> 1.5.9 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>,
© 1997-2000</small></address>
</body>
</html>
distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
d5e74628f0e673bb8680aebce32b2c04
>
files
>
15389
