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<h1>itkHistogramToLogProbabilityImageFilter.h</h1><a href="itkHistogramToLogProbabilityImageFilter_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: itkHistogramToLogProbabilityImageFilter.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2009-01-17 09:13:59 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.8 $</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 __itkHistogramLogProbabilityFunction_h</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkHistogramLogProbabilityFunction_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="itkHistogramToImageFilter_8h.html">itkHistogramToImageFilter.h</a>"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="keyword">namespace </span>itk
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024
<a name="l00046"></a>00046 <span class="keyword">namespace </span>Function {
<a name="l00047"></a>00047 <span class="keyword">template</span>< <span class="keyword">class</span> TInput, <span class="keyword">class</span> TOutput=<span class="keywordtype">double</span> >
<a name="l00048"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html">00048</a> <span class="keyword">class </span><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html">HistogramLogProbabilityFunction</a>
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 <span class="keyword">public</span>:
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">//Probability function = Number of occurances in each bin /</span>
<a name="l00053"></a>00053 <span class="comment">// Total Number of occurances. </span>
<a name="l00054"></a>00054 <span class="comment">//</span>
<a name="l00055"></a>00055 <span class="comment">// Returns pixels of float.. </span>
<a name="l00056"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#725be88a8ec8207523a8cc53ff672409">00056</a> <span class="keyword">typedef</span> TOutput <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#725be88a8ec8207523a8cc53ff672409">OutputPixelType</a>;
<a name="l00057"></a>00057
<a name="l00058"></a>00058
<a name="l00059"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#9d3b0fb41322e83741e45af3edccf88c">00059</a> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#9d3b0fb41322e83741e45af3edccf88c">HistogramLogProbabilityFunction</a>():
<a name="l00060"></a>00060 m_TotalFrequency(1) {}
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#18aa80a9eb718cc6c45a004ef567dccc">00062</a> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#18aa80a9eb718cc6c45a004ef567dccc">~HistogramLogProbabilityFunction</a>() {};
<a name="l00063"></a>00063
<a name="l00064"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#07e92937797fa7abeedea9e888916a64">00064</a> <span class="keyword">inline</span> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#725be88a8ec8207523a8cc53ff672409">OutputPixelType</a> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#07e92937797fa7abeedea9e888916a64">operator()</a>( <span class="keyword">const</span> TInput & <a class="code" href="classA.html">A</a> )
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 <span class="keywordflow">if</span>( A )
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#725be88a8ec8207523a8cc53ff672409">OutputPixelType</a><span class="keyword">></span>(log( static_cast<OutputPixelType>(A) /
<a name="l00069"></a>00069 static_cast<OutputPixelType>(m_TotalFrequency)) / vcl_log(2.0) );
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 <span class="keywordflow">else</span>
<a name="l00072"></a>00072 { <span class="comment">// Check for Log 0. Always assume that the frequency is atleast 1.</span>
<a name="l00073"></a>00073 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#725be88a8ec8207523a8cc53ff672409">OutputPixelType</a><span class="keyword">></span>(log( static_cast<OutputPixelType>(A+1) /
<a name="l00074"></a>00074 static_cast<OutputPixelType>(m_TotalFrequency)) / vcl_log(2.0) );
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#3dc770a9701a0a065a05df4fb561abd8">00079</a> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#3dc770a9701a0a065a05df4fb561abd8">SetTotalFrequency</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> n )
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 m_TotalFrequency = n;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a><a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#50caae2786125dc68fc736aeb6b1c638">00084</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html#50caae2786125dc68fc736aeb6b1c638">GetTotalFrequency</a>( )<span class="keyword"> const </span>
<a name="l00085"></a>00085 <span class="keyword"> </span>{
<a name="l00086"></a>00086 <span class="keywordflow">return</span> m_TotalFrequency;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keyword">private</span>:
<a name="l00090"></a>00090 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> m_TotalFrequency;
<a name="l00091"></a>00091 };
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keyword">template</span> <<span class="keyword">class</span> THistogram, <span class="keyword">class</span> TOutputPixel=<span class="keywordtype">double</span> >
<a name="l00095"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html">00095</a> <span class="keyword">class </span><a class="code" href="itkWin32Header_8h.html#7d4384322557205d75f0719c012dded6">ITK_EXPORT</a> <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html" title="The class takes a histogram as an input and gives the log probability image as the...">HistogramToLogProbabilityImageFilter</a> :
<a name="l00096"></a>00096 <span class="keyword">public</span> <a class="code" href="classitk_1_1HistogramToImageFilter.html" title="This class takes a histogram as an input and returns an image of type specified by...">HistogramToImageFilter</a>< THistogram,
<a name="l00097"></a>00097 Function::HistogramLogProbabilityFunction< unsigned long, TOutputPixel > >
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 <span class="keyword">public</span>:
<a name="l00100"></a>00100
<a name="l00102"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#5a51f07db297ce8a981369141d87d7cc">00102</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html" title="The class takes a histogram as an input and gives the log probability image as the...">HistogramToLogProbabilityImageFilter</a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>;
<a name="l00103"></a>00103
<a name="l00105"></a>00105 <span class="keyword">typedef</span> <a class="code" href="classitk_1_1HistogramToImageFilter.html" title="This class takes a histogram as an input and returns an image of type specified by...">HistogramToImageFilter</a>< THistogram,
<a name="l00106"></a>00106 <a class="code" href="classitk_1_1Function_1_1HistogramLogProbabilityFunction.html">Function::HistogramLogProbabilityFunction< unsigned long, TOutputPixel ></a> >
<a name="l00107"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#ef6e77b210eef48a41ba443e42f9bad7">00107</a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Superclass</a>;
<a name="l00108"></a>00108
<a name="l00109"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#b8c450b8491c1d0fb1f426f807769a94">00109</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="l00110"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#ec51bea4044c8ae61cfa12296129a26b">00110</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="l00111"></a>00111
<a name="l00113"></a>00113 <a class="code" href="itkMacro_8h.html#574c1f86661d409dd32c742307a0e96a">itkTypeMacro</a>( <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html" title="The class takes a histogram as an input and gives the log probability image as the...">HistogramToLogProbabilityImageFilter</a>, <a class="code" href="classitk_1_1HistogramToImageFilter.html" title="This class takes a histogram as an input and returns an image of type specified by...">HistogramToImageFilter</a> );
<a name="l00114"></a>00114
<a name="l00116"></a>00116 <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="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keyword">protected</span>:
<a name="l00119"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#ae0d519f0d7980bcbf9e54ef4155e8da">00119</a> <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#ae0d519f0d7980bcbf9e54ef4155e8da">HistogramToLogProbabilityImageFilter</a>() {}
<a name="l00120"></a><a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#32167f6b08e4466398000b2fd5591956">00120</a> <span class="keyword">virtual</span> <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html#32167f6b08e4466398000b2fd5591956">~HistogramToLogProbabilityImageFilter</a>() {}
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keyword">private</span>:
<a name="l00123"></a>00123 <a class="code" href="classitk_1_1HistogramToLogProbabilityImageFilter.html" title="The class takes a histogram as an input and gives the log probability image as the...">HistogramToLogProbabilityImageFilter</a>(<span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ac7d0120fe5292cdcdddb6163b8cb150">Self</a>&); <span class="comment">//purposely not implemented</span>
<a name="l00124"></a>00124 <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="l00125"></a>00125
<a name="l00126"></a>00126 };
<a name="l00127"></a>00127
<a name="l00128"></a>00128 } <span class="comment">// end namespace itk</span>
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="preprocessor">#endif</span>
<a name="l00131"></a>00131 <span class="preprocessor"></span>
<a name="l00132"></a>00132
<a name="l00133"></a>00133
<a name="l00134"></a>00134
</pre></div></div>
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