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<h1>itkCentralDifferenceImageFunction.h</h1><a href="itkCentralDifferenceImageFunction_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: itkCentralDifferenceImageFunction.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2008-11-10 16:55:01 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.35 $</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 <span class="preprocessor">#ifndef __itkCentralDifferenceImageFunction_h</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkCentralDifferenceImageFunction_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="itkImageFunction_8h.html">itkImageFunction.h</a>"</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="itkCovariantVector_8h.html">itkCovariantVector.h</a>"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="itkImageBase_8h.html">itkImageBase.h</a>"</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="keyword">namespace </span>itk
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026
<a name="l00039"></a>00039 <span class="keyword">template</span> <
<a name="l00040"></a>00040 <span class="keyword">class </span>TInputImage,
<a name="l00041"></a>00041 <span class="keyword">class </span>TCoordRep = <span class="keywordtype">float</span> >
<a name="l00042"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html">00042</a> <span class="keyword">class </span><a class="code" href="itkWin32Header_8h.html#7d4384322557205d75f0719c012dded6">ITK_EXPORT</a> <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">CentralDifferenceImageFunction</a> :
<a name="l00043"></a>00043 <span class="keyword">public</span> <a class="code" href="classitk_1_1ImageFunction.html" title="Evaluates a function of an image at specified position.">ImageFunction</a>< TInputImage,
<a name="l00044"></a>00044 CovariantVector<double, \
<a name="l00045"></a>00045 ::itk::GetImageDimension<TInputImage>::ImageDimension>,
<a name="l00046"></a>00046 TCoordRep >
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <span class="keyword">public</span>:
<a name="l00049"></a>00049
<a name="l00051"></a>00051 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(ImageDimension, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>,
<a name="l00052"></a>00052 TInputImage::ImageDimension);
<a name="l00053"></a>00053
<a name="l00055"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#590a1b59111ac4a266c53d604cf091fc">00055</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">CentralDifferenceImageFunction</a> <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">Self</a>;
<a name="l00056"></a>00056 <span class="keyword">typedef</span> <a class="code" href="classitk_1_1ImageFunction.html" title="Evaluates a function of an image at specified position.">ImageFunction</a><TInputImage,
<a name="l00057"></a>00057 <a class="code" href="classitk_1_1CovariantVector.html" title="A templated class holding a n-Dimensional covariant vector.">CovariantVector</a><double,
<a name="l00058"></a>00058 <a class="code" href="itkMacro_8h.html#94ef2dc11d52c8ef0a78e34558feb8cb">itkGetStaticConstMacro</a>(ImageDimension)>,
<a name="l00059"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#79d43649e58228288631b9600b2abeba">00059</a> TCoordRep> <a class="code" href="classitk_1_1ImageFunction.html" title="Evaluates a function of an image at specified position.">Superclass</a>;
<a name="l00060"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#37cbf0583ff4db7f1ea0a32237ddb805">00060</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="l00061"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#8d189fbc8568fccb3612b3ad819af983">00061</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="l00062"></a>00062
<a name="l00064"></a>00064 <a class="code" href="itkMacro_8h.html#574c1f86661d409dd32c742307a0e96a">itkTypeMacro</a>(<a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">CentralDifferenceImageFunction</a>, <a class="code" href="classitk_1_1ImageFunction.html" title="Evaluates a function of an image at specified position.">ImageFunction</a>);
<a name="l00065"></a>00065
<a name="l00067"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#92fb9da46a8d1f3d094cfca36d6d2842">00067</a> <a class="code" href="itkMacro_8h.html#0fdc15685afa271857c57e7cd482f30c">itkNewMacro</a>(<a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">Self</a>);
<a name="l00068"></a>00068
<a name="l00070"></a>00070 <span class="keyword">typedef</span> TInputImage <a class="code" href="namespaceHardConnectedComponentImageFilter.html#3742cbac150bee74daa9aab85ed80623">InputImageType</a>;
<a name="l00071"></a>00071
<a name="l00073"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#7ad409dc313fae661769ed06a3dfe234">00073</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> Superclass::OutputType OutputType;
<a name="l00074"></a>00074
<a name="l00076"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#738b4548534a16b208e4adb68fea9184">00076</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">Superclass::IndexType</a> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">IndexType</a>;
<a name="l00077"></a>00077
<a name="l00079"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#800ba490f27bca0deefe9de8405e35d9">00079</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1ContinuousIndex.html">Superclass::ContinuousIndexType</a> <a class="code" href="classitk_1_1ContinuousIndex.html">ContinuousIndexType</a>;
<a name="l00080"></a>00080
<a name="l00082"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#037b4ca3da29dda429afcaeb24001194">00082</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1Point.html" title="A templated class holding a geometric point in n-Dimensional space.">Superclass::PointType</a> <a class="code" href="classitk_1_1Point.html" title="A templated class holding a geometric point in n-Dimensional space.">PointType</a>;
<a name="l00083"></a>00083
<a name="l00091"></a>00091 <span class="keyword">virtual</span> OutputType EvaluateAtIndex( <span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">IndexType</a>& index ) <span class="keyword">const</span>;
<a name="l00092"></a>00092
<a name="l00101"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#365319f72a7a39e532085e8c66f1283c">00101</a> <span class="keyword">virtual</span> OutputType Evaluate( <span class="keyword">const</span> <a class="code" href="classitk_1_1Point.html" title="A templated class holding a geometric point in n-Dimensional space.">PointType</a>& point )<span class="keyword"> const</span>
<a name="l00102"></a>00102 <span class="keyword"> </span>{
<a name="l00103"></a>00103 <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">IndexType</a> index;
<a name="l00104"></a>00104 this->ConvertPointToNearestIndex( point, index );
<a name="l00105"></a>00105 <span class="keywordflow">return</span> this->EvaluateAtIndex( index );
<a name="l00106"></a>00106 }
<a name="l00107"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#80d9b5a90d57a4f9e611933f61588e67">00107</a> <span class="keyword">virtual</span> OutputType EvaluateAtContinuousIndex(
<a name="l00108"></a>00108 <span class="keyword">const</span> <a class="code" href="classitk_1_1ContinuousIndex.html">ContinuousIndexType</a>& cindex )<span class="keyword"> const</span>
<a name="l00109"></a>00109 <span class="keyword"> </span>{
<a name="l00110"></a>00110 <a class="code" href="namespaceHardConnectedComponentImageFilter.html#be32dc19e71d40322ad9828b9ab40853">IndexType</a> index;
<a name="l00111"></a>00111 this->ConvertContinuousIndexToNearestIndex( cindex, index );
<a name="l00112"></a>00112 <span class="keywordflow">return</span> this->EvaluateAtIndex( index );
<a name="l00113"></a>00113 }
<a name="l00115"></a>00115
<a name="l00127"></a>00127 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>( UseImageDirection, <span class="keywordtype">bool</span> );
<a name="l00128"></a>00128 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>( UseImageDirection, <span class="keywordtype">bool</span> );
<a name="l00129"></a>00129 <a class="code" href="itkMacro_8h.html#9e7d129ffebb09fd28bc213e02d87248">itkBooleanMacro</a>( UseImageDirection );
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">protected</span>:
<a name="l00133"></a>00133 <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">CentralDifferenceImageFunction</a>();
<a name="l00134"></a><a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#a622830f9bfdb072006b25bc51cb160f">00134</a> <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html#a622830f9bfdb072006b25bc51cb160f">~CentralDifferenceImageFunction</a>(){};
<a name="l00135"></a>00135 <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="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">private</span>:
<a name="l00138"></a>00138 <a class="code" href="classitk_1_1CentralDifferenceImageFunction.html" title="Calculate the derivative by central differencing.">CentralDifferenceImageFunction</a>( <span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ac7d0120fe5292cdcdddb6163b8cb150">Self</a>& ); <span class="comment">//purposely not implemented</span>
<a name="l00139"></a>00139 <span class="keywordtype">void</span> operator=( <span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ac7d0120fe5292cdcdddb6163b8cb150">Self</a>& ); <span class="comment">//purposely not implemented</span>
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="comment">// flag to take or not the image direction into account</span>
<a name="l00142"></a>00142 <span class="comment">// when computing the derivatives.</span>
<a name="l00143"></a>00143 <span class="keywordtype">bool</span> m_UseImageDirection;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 };
<a name="l00146"></a>00146
<a name="l00147"></a>00147 } <span class="comment">// end namespace itk</span>
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="comment">// Define instantiation macro for this template.</span>
<a name="l00150"></a><a class="code" href="itkCentralDifferenceImageFunction_8h.html#505655689969a243084d51e6e7559aaf">00150</a> <span class="preprocessor">#define ITK_TEMPLATE_CentralDifferenceImageFunction(_, EXPORT, x, y) namespace itk { \</span>
<a name="l00151"></a>00151 <span class="preprocessor"> _(2(class EXPORT CentralDifferenceImageFunction< ITK_TEMPLATE_2 x >)) \</span>
<a name="l00152"></a>00152 <span class="preprocessor"> namespace Templates { typedef CentralDifferenceImageFunction< ITK_TEMPLATE_2 x > \</span>
<a name="l00153"></a>00153 <span class="preprocessor"> CentralDifferenceImageFunction##y; } \</span>
<a name="l00154"></a>00154 <span class="preprocessor"> }</span>
<a name="l00155"></a>00155 <span class="preprocessor"></span>
<a name="l00156"></a>00156 <span class="preprocessor">#if ITK_TEMPLATE_EXPLICIT</span>
<a name="l00157"></a>00157 <span class="preprocessor"></span><span class="preprocessor"># include "Templates/itkCentralDifferenceImageFunction+-.h"</span>
<a name="l00158"></a>00158 <span class="preprocessor">#endif</span>
<a name="l00159"></a>00159 <span class="preprocessor"></span>
<a name="l00160"></a>00160 <span class="preprocessor">#if ITK_TEMPLATE_TXX</span>
<a name="l00161"></a>00161 <span class="preprocessor"></span><span class="preprocessor"># include "itkCentralDifferenceImageFunction.txx"</span>
<a name="l00162"></a>00162 <span class="preprocessor">#endif</span>
<a name="l00163"></a>00163 <span class="preprocessor"></span>
<a name="l00164"></a>00164 <span class="preprocessor">#endif</span>
<a name="l00165"></a>00165 <span class="preprocessor"></span>
</pre></div></div>
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