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<h1>itkAttributeMorphologyBaseImageFilter.h</h1><a href="itkAttributeMorphologyBaseImageFilter_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: itkAttributeMorphologyBaseImageFilter.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2009-02-20 17:59:59 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.4 $</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 __itkAttributeMorphologyBaseImageFilter_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define __itkAttributeMorphologyBaseImageFilter_h</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="itkImageToImageFilter_8h.html">itkImageToImageFilter.h</a>"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="itkImage_8h.html">itkImage.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <vector></span>
<a name="l00024"></a>00024
<a name="l00025"></a><a class="code" href="itkAttributeMorphologyBaseImageFilter_8h.html#7826934ae929ca3d49c785e6e41130ae">00025</a> <span class="preprocessor">#define PAMI</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span>
<a name="l00027"></a>00027 <span class="keyword">namespace </span>itk
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029
<a name="l00056"></a>00056 <span class="keyword">template</span> <<span class="keyword">class</span> TInputImage, <span class="keyword">class</span> TOutputImage, <span class="keyword">class</span> TAttribute, <span class="keyword">class</span> TFunction>
<a name="l00057"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html">00057</a> <span class="keyword">class </span><a class="code" href="itkWin32Header_8h.html#7d4384322557205d75f0719c012dded6">ITK_EXPORT</a> <a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html" title="Morphological opening by attributes.">AttributeMorphologyBaseImageFilter</a> :
<a name="l00058"></a>00058 <span class="keyword">public</span> <a class="code" href="classitk_1_1ImageToImageFilter.html" title="Base class for filters that take an image as input and produce an image as output...">ImageToImageFilter</a>< TInputImage, TOutputImage >
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00064"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#b2649ab2a6625316954ce4f3b8f9f58d">00064</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html" title="Morphological opening by attributes.">AttributeMorphologyBaseImageFilter</a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>;
<a name="l00065"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#f586e4cd075e161ec76886038a55decd">00065</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1ImageToImageFilter.html">ImageToImageFilter< TInputImage, TOutputImage ></a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Superclass</a>;
<a name="l00066"></a>00066
<a name="l00070"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#4c02cfc6d3741d6dfb822ec88fdfe57e">00070</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> Superclass::InputImagePointer InputImagePointer;
<a name="l00071"></a>00071
<a name="l00076"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#87c040e7ff759bc6f665726cbd3b1d4d">00076</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TOutputImage::PixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#73549c9066bb62470db248f27cde10d2">OutputPixelType</a>;
<a name="l00077"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#40d90ab236c89f3619a6fd1057e6cea5">00077</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TOutputImage::InternalPixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#05ddc2f0f1e5f6684417679cf537b4e2">OutputInternalPixelType</a>;
<a name="l00078"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#27650e9c1db7fb74601194c5907f2a2d">00078</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TInputImage::PixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#6e44b89d73d576fe68c175566a634ab8">InputPixelType</a>;
<a name="l00079"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#8cc811c42fa98d1235d49f2e7a0198c6">00079</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TInputImage::InternalPixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#a49b439ecaa370af8c4f2c64b0f845bd">InputInternalPixelType</a>;
<a name="l00080"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#59bcff89eea4d3f0e0d231df4b268fe3">00080</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">TInputImage::IndexType</a> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">IndexType</a>;
<a name="l00081"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#87e98df6bbab2ca2686cb22003758fde">00081</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TInputImage::OffsetType OffsetType;
<a name="l00082"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#66f8164f20172601dc2e888e01a4e920">00082</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#5bf82236e1e50e653de84c8ead448599">TInputImage::SizeType</a> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#5bf82236e1e50e653de84c8ead448599">SizeType</a>;
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(ImageDimension, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>,
<a name="l00085"></a>00085 TOutputImage::ImageDimension);
<a name="l00086"></a>00086
<a name="l00090"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#647a6b70b9bcbd81b7af6edd059b9043">00090</a> <span class="keyword">typedef</span> TInputImage <a class="code" href="namespaceHardConnectedComponentImageFilter.html#3742cbac150bee74daa9aab85ed80623">InputImageType</a>;
<a name="l00091"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#82730760609df37ea08b97a0af0ccfa9">00091</a> <span class="keyword">typedef</span> TOutputImage <a class="code" href="namespaceHardConnectedComponentImageFilter.html#386ea018cab3835dcdff2603f4d2280e">OutputImageType</a>;
<a name="l00092"></a>00092 <span class="comment">// typedef typename TInputImage::IndexType IndexType;</span>
<a name="l00093"></a>00093 <span class="comment">// typedef typename TInputImage::SizeType SizeType;</span>
<a name="l00094"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#625ea16a8f4f6f64e97c0969db5153b0">00094</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ed8c4a40607d317c666eb96ea265e126">TOutputImage::RegionType</a> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ed8c4a40607d317c666eb96ea265e126">RegionType</a>;
<a name="l00095"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#521d7105c3f5c4f30f1e6b1921ba5be3">00095</a> <span class="keyword">typedef</span> std::list<IndexType> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#c7ddb53527b2dae111d642e7d2e6be07">ListType</a>;
<a name="l00096"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#39af673d1d6d0fcf561a88972b2f0832">00096</a> <span class="keyword">typedef</span> TAttribute AttributeType;
<a name="l00097"></a>00097
<a name="l00101"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#a3cdeb5af4f92c1939e7af53f554ab9f">00101</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1SmartPointer.html">SmartPointer<Self></a> <a class="code" href="classitk_1_1SmartPointer.html">Pointer</a>;
<a name="l00102"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#d208b93719d26a282132d2108e4092b9">00102</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1SmartPointer.html">SmartPointer<const Self></a> <a class="code" href="classitk_1_1SmartPointer.html">ConstPointer</a>;
<a name="l00103"></a>00103
<a name="l00107"></a>00107 <a class="code" href="itkMacro_8h.html#574c1f86661d409dd32c742307a0e96a">itkTypeMacro</a>(<a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html" title="Morphological opening by attributes.">AttributeMorphologyBaseImageFilter</a>, <a class="code" href="classitk_1_1ImageToImageFilter.html" title="Base class for filters that take an image as input and produce an image as output...">ImageToImageFilter</a>);
<a name="l00108"></a>00108
<a name="l00112"></a>00112 <a class="code" href="itkMacro_8h.html#0fdc15685afa271857c57e7cd482f30c">itkNewMacro</a>(<a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>);
<a name="l00113"></a>00113
<a name="l00120"></a>00120 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(FullyConnected, <span class="keywordtype">bool</span>);
<a name="l00121"></a>00121 <a class="code" href="itkMacro_8h.html#7d989c13a1a213168db99ae0f84185d4">itkGetConstReferenceMacro</a>(FullyConnected, <span class="keywordtype">bool</span>);
<a name="l00122"></a>00122 <a class="code" href="itkMacro_8h.html#9e7d129ffebb09fd28bc213e02d87248">itkBooleanMacro</a>(FullyConnected);
<a name="l00124"></a>00124
<a name="l00130"></a>00130 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(Lambda, AttributeType);
<a name="l00131"></a>00131 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(Lambda, AttributeType);
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keyword">protected</span>:
<a name="l00135"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#e55ddbff944dddaf00682a90a1622f7b">00135</a> <a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html" title="Morphological opening by attributes.">AttributeMorphologyBaseImageFilter</a>()
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 m_FullyConnected = <span class="keyword">false</span>;
<a name="l00138"></a>00138 m_AttributeValuePerPixel = 1;
<a name="l00139"></a>00139 m_Lambda = 0;
<a name="l00140"></a>00140 }
<a name="l00141"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#62358d0aa2c4978d32277d9cac5f985d">00141</a> <span class="keyword">virtual</span> <a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#62358d0aa2c4978d32277d9cac5f985d">~AttributeMorphologyBaseImageFilter</a>() {}
<a name="l00142"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#686d56a63c3026e92a82c56a3587cfce">00142</a> <a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#686d56a63c3026e92a82c56a3587cfce">AttributeMorphologyBaseImageFilter</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>&) {}
<a name="l00143"></a>00143 <span class="keywordtype">void</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#920ae03048a5ad715d803ca2e92b52de">PrintSelf</a>(std::ostream& os, <a class="code" href="classitk_1_1Indent.html" title="Control indentation during Print() invocation.">Indent</a> indent) <span class="keyword">const</span>;
<a name="l00144"></a>00144
<a name="l00148"></a>00148 <span class="keywordtype">void</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#f75a5945cdd8315676941024a0b8c1e9">GenerateData</a>();
<a name="l00149"></a>00149
<a name="l00153"></a>00153 <span class="keywordtype">void</span> GenerateInputRequestedRegion();
<a name="l00154"></a>00154
<a name="l00159"></a>00159 <span class="keywordtype">void</span> EnlargeOutputRequestedRegion(<a class="code" href="classitk_1_1DataObject.html" title="Base class for all data objects in ITK.">DataObject</a> *<a class="code" href="itkMacro_8h.html#6be3b439282da7a34278c0594589b972">itkNotUsed</a>(output));
<a name="l00160"></a>00160
<a name="l00161"></a><a class="code" href="classitk_1_1AttributeMorphologyBaseImageFilter.html#3a63b74b386bd47b4b232754dfbea053">00161</a> AttributeType m_AttributeValuePerPixel;
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keyword">private</span>:
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="keywordtype">bool</span> m_FullyConnected;
<a name="l00166"></a>00166 AttributeType m_Lambda;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 <span class="comment">// some constants used several times in the code</span>
<a name="l00169"></a>00169 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(INACTIVE, <span class="keywordtype">long</span>, -1);
<a name="l00170"></a>00170 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(ACTIVE, <span class="keywordtype">long</span>, -2);
<a name="l00171"></a>00171 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(ROOT, <span class="keywordtype">long</span>, -3);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="comment">// Just used for area/volume openings at the moment</span>
<a name="l00174"></a>00174 AttributeType * m_AuxData;
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keyword">typedef</span> std::vector<OffsetType> OffsetVecType;
<a name="l00177"></a>00177 <span class="comment">// offset in the linear array.</span>
<a name="l00178"></a>00178 <span class="keyword">typedef</span> std::vector<long> OffsetDirectVecType;
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordtype">void</span> SetupOffsetVec(OffsetDirectVecType &PosOffsets, OffsetVecType &Offsets);
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keyword">class </span>GreyAndPos
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="keyword">public</span>:
<a name="l00185"></a>00185 <a class="code" href="namespaceHardConnectedComponentImageFilter.html#6e44b89d73d576fe68c175566a634ab8">InputPixelType</a> Val;
<a name="l00186"></a>00186 <span class="keywordtype">long</span> Pos;
<a name="l00187"></a>00187 };
<a name="l00188"></a>00188
<a name="l00189"></a>00189 GreyAndPos * m_SortPixels;
<a name="l00190"></a>00190 <span class="keywordtype">long</span> * m_Parent;
<a name="l00191"></a>00191 <span class="preprocessor">#ifndef PAMI</span>
<a name="l00192"></a>00192 <span class="preprocessor"></span> <span class="keywordtype">bool</span> * m_Processed;
<a name="l00193"></a>00193 <span class="preprocessor">#endif</span>
<a name="l00194"></a>00194 <span class="preprocessor"></span> <span class="comment">// This is a bit ugly, but I can't see an easy way around</span>
<a name="l00195"></a>00195 <a class="code" href="namespaceHardConnectedComponentImageFilter.html#6e44b89d73d576fe68c175566a634ab8">InputPixelType</a> * m_Raw;
<a name="l00196"></a>00196
<a name="l00197"></a>00197 <span class="keyword">class </span>ComparePixStruct
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keyword">public</span>:
<a name="l00200"></a>00200 TFunction m_TFunction;
<a name="l00201"></a>00201 <span class="keywordtype">bool</span> operator()(GreyAndPos <span class="keyword">const</span> &l, GreyAndPos <span class="keyword">const</span> &r)<span class="keyword"> const</span>
<a name="l00202"></a>00202 <span class="keyword"> </span>{
<a name="l00203"></a>00203 <span class="keywordflow">if</span> (m_TFunction(l.Val, r.Val))
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (l.Val == r.Val)
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209 <span class="keywordflow">return</span> (l.Pos < r.Pos);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213 };
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="preprocessor">#ifdef PAMI</span>
<a name="l00216"></a>00216 <span class="preprocessor"></span> <span class="comment">// version from PAMI. Note - using the AuxData array rather than the</span>
<a name="l00217"></a>00217 <span class="comment">// parent array to store area</span>
<a name="l00218"></a>00218 <span class="keywordtype">void</span> MakeSet(<span class="keywordtype">long</span> x)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 m_Parent[x] = ACTIVE;
<a name="l00221"></a>00221 m_AuxData[x] = m_AttributeValuePerPixel;
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="keywordtype">long</span> FindRoot(<span class="keywordtype">long</span> x)
<a name="l00225"></a>00225 {
<a name="l00226"></a>00226 <span class="keywordflow">if</span> (m_Parent[x] >= 0)
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 m_Parent[x] = FindRoot(m_Parent[x]);
<a name="l00229"></a>00229 <span class="keywordflow">return</span>(m_Parent[x]);
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 <span class="keywordflow">else</span>
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 <span class="keywordflow">return</span>(x);
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <span class="keywordtype">bool</span> Criterion(<span class="keywordtype">long</span> x, <span class="keywordtype">long</span> y)
<a name="l00238"></a>00238 {
<a name="l00239"></a>00239 <span class="keywordflow">return</span>((m_Raw[x] == m_Raw[y]) || (m_AuxData[x] < m_Lambda));
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="keywordtype">void</span> Union(<span class="keywordtype">long</span> n, <span class="keywordtype">long</span> p)
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244 <span class="keywordtype">long</span> r = FindRoot(n);
<a name="l00245"></a>00245 <span class="keywordflow">if</span> (r != p)
<a name="l00246"></a>00246 {
<a name="l00247"></a>00247 <span class="keywordflow">if</span> (Criterion(r, p))
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249 m_AuxData[p] += m_AuxData[r];
<a name="l00250"></a>00250 m_Parent[r] = p;
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 <span class="keywordflow">else</span>
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 m_AuxData[p] = m_Lambda;
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <span class="preprocessor">#else</span>
<a name="l00260"></a>00260 <span class="preprocessor"></span> <span class="comment">// version from ISMM paper</span>
<a name="l00261"></a>00261 <span class="keywordtype">void</span> MakeSet(<span class="keywordtype">long</span> x)
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 m_Parent[x] = ACTIVE;
<a name="l00264"></a>00264 m_AuxData[x] = m_AttributeValuePerPixel;
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="keywordtype">void</span> Link(<span class="keywordtype">long</span> x, <span class="keywordtype">long</span> y)
<a name="l00268"></a>00268 {
<a name="l00269"></a>00269 <span class="keywordflow">if</span> ((m_Parent[y] == ACTIVE) && (m_Parent[x] == ACTIVE))
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 <span class="comment">// should be a call to MergeAuxData</span>
<a name="l00272"></a>00272 m_AuxData[y] = m_AuxData[x] + m_AuxData[y];
<a name="l00273"></a>00273 m_AuxData[x] = -m_AttributeValuePerPixel;
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (m_Parent[x] == ACTIVE)
<a name="l00276"></a>00276 {
<a name="l00277"></a>00277 m_AuxData[x] = -m_AttributeValuePerPixel;
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279 <span class="keywordflow">else</span>
<a name="l00280"></a>00280 {
<a name="l00281"></a>00281 m_AuxData[y] = -m_AttributeValuePerPixel;
<a name="l00282"></a>00282 m_Parent[y] = INACTIVE;
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 m_Parent[x] = y;
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keywordtype">long</span> FindRoot(<span class="keywordtype">long</span> x)
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 <span class="keywordflow">if</span> (m_Parent[x] >= 0)
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 m_Parent[x] = FindRoot(m_Parent[x]);
<a name="l00292"></a>00292 <span class="keywordflow">return</span>(m_Parent[x]);
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294 <span class="keywordflow">else</span>
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 <span class="keywordflow">return</span>(x);
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="keywordtype">bool</span> Equiv(<span class="keywordtype">long</span> x, <span class="keywordtype">long</span> y)
<a name="l00301"></a>00301 {
<a name="l00302"></a>00302 <span class="keywordflow">return</span>((m_Raw[x] == m_Raw[y]) || (m_Parent[x] == ACTIVE));
<a name="l00303"></a>00303 }
<a name="l00304"></a>00304
<a name="l00305"></a>00305 <span class="keywordtype">void</span> Union(<span class="keywordtype">long</span> n, <span class="keywordtype">long</span> p)
<a name="l00306"></a>00306 {
<a name="l00307"></a>00307 <span class="keywordtype">long</span> r = FindRoot(n);
<a name="l00308"></a>00308 <span class="keywordflow">if</span> (r != p)
<a name="l00309"></a>00309 {
<a name="l00310"></a>00310 <span class="keywordflow">if</span> (Equiv(r, p))
<a name="l00311"></a>00311 {
<a name="l00312"></a>00312 Link(r, p);
<a name="l00313"></a>00313 }
<a name="l00314"></a>00314 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (m_Parent[p] == ACTIVE)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 m_Parent[p] = INACTIVE;
<a name="l00317"></a>00317 m_AuxData[p] = -m_AttributeValuePerPixel;
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319 }
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 <span class="preprocessor">#endif</span>
<a name="l00322"></a>00322 <span class="preprocessor"></span>};
<a name="l00323"></a>00323
<a name="l00324"></a>00324 } <span class="comment">// end namespace itk</span>
<a name="l00325"></a>00325
<a name="l00326"></a>00326 <span class="preprocessor">#ifndef ITK_MANUAL_INSTANTIATION</span>
<a name="l00327"></a>00327 <span class="preprocessor"></span><span class="preprocessor">#include "itkAttributeMorphologyBaseImageFilter.txx"</span>
<a name="l00328"></a>00328 <span class="preprocessor">#endif</span>
<a name="l00329"></a>00329 <span class="preprocessor"></span>
<a name="l00330"></a>00330 <span class="preprocessor">#endif</span>
<a name="l00331"></a>00331 <span class="preprocessor"></span>
</pre></div></div>
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