<!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: itkMultiScaleHessianBasedMeasureImageFilter.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_dd352b1cbb04f9ff09fa5f33693fed9f.html">Review</a> </div> <div class="contents"> <h1>itkMultiScaleHessianBasedMeasureImageFilter.h</h1><a href="itkMultiScaleHessianBasedMeasureImageFilter_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: itkMultiScaleHessianBasedMeasureImageFilter.h,v $</span> <a name="l00005"></a>00005 <span class="comment"> Language: C++</span> <a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2009-02-25 22:25:50 $</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 <span class="preprocessor">#ifndef __itkMultiScaleHessianBasedMeasureImageFilter_h</span> <a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkMultiScaleHessianBasedMeasureImageFilter_h</span> <a name="l00019"></a>00019 <span class="preprocessor"></span> <a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="itkImageToImageFilter_8h.html">itkImageToImageFilter.h</a>"</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="itkHessianRecursiveGaussianImageFilter_8h.html">itkHessianRecursiveGaussianImageFilter.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="l00055"></a>00055 <span class="keyword">template</span> <<span class="keyword">typename</span> TInputImage, <a name="l00056"></a>00056 <span class="keyword">typename</span> THessianImage, <a name="l00057"></a>00057 <span class="keyword">typename</span> TOutputImage=TInputImage > <a name="l00058"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html">00058</a> <span class="keyword">class </span><a class="code" href="itkWin32Header_8h.html#7d4384322557205d75f0719c012dded6">ITK_EXPORT</a> <a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html" title="A filter to enhance structures using Hessian eigensystem-based measures in a multiscale...">MultiScaleHessianBasedMeasureImageFilter</a> <a name="l00059"></a>00059 : <span class="keyword">public</span> <a name="l00060"></a>00060 <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="l00061"></a>00061 { <a name="l00062"></a>00062 <span class="keyword">public</span>: <a name="l00064"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#7076f058ca9dcb235bace504c5d5a282">00064</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html" title="A filter to enhance structures using Hessian eigensystem-based measures in a multiscale...">MultiScaleHessianBasedMeasureImageFilter</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_1MultiScaleHessianBasedMeasureImageFilter.html#82ae30e488b0ed31d33669f27b5362df">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="l00067"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#62a75f6aa682df3c97efccdf62a9d083">00067</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="l00068"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#df70ca8be0a8b0898c004bf66b51a6f3">00068</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="l00069"></a>00069 <a name="l00070"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#32efa702e699f702cdb76bec5f1d1db7">00070</a> <span class="keyword">typedef</span> TInputImage <a class="code" href="namespaceHardConnectedComponentImageFilter.html#3742cbac150bee74daa9aab85ed80623">InputImageType</a>; <a name="l00071"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#faa14a288297b9fdee9269b4b7560d90">00071</a> <span class="keyword">typedef</span> TOutputImage <a class="code" href="namespaceHardConnectedComponentImageFilter.html#386ea018cab3835dcdff2603f4d2280e">OutputImageType</a>; <a name="l00072"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#9874cc8521d6839421db35e1298ea1b2">00072</a> <span class="keyword">typedef</span> THessianImage HessianImageType; <a name="l00073"></a>00073 <a name="l00074"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#8afd9acb0fa9c5eb6c422706aa5e2b2d">00074</a> <span class="keyword">typedef</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< HessianImageType, OutputImageType ></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...">HessianToMeasureFilterType</a>; <a name="l00075"></a>00075 <a name="l00076"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#e1e8d10c4e843537c57b45eb04ff5ff9">00076</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TInputImage::PixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#6e44b89d73d576fe68c175566a634ab8">InputPixelType</a>; <a name="l00077"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#71f98a6b3748a00cc183ce6750747bda">00077</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> TOutputImage::PixelType <a class="code" href="namespaceHardConnectedComponentImageFilter.html#73549c9066bb62470db248f27cde10d2">OutputPixelType</a>; <a name="l00078"></a>00078 <a name="l00080"></a>00080 <a class="code" href="itkMacro_8h.html#1905cf6b2e88235996fa7ff73b2fb0eb">itkStaticConstMacro</a>(ImageDimension, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>, ::<a class="code" href="structitk_1_1GetImageDimension.html">itk::GetImageDimension<InputImageType>::ImageDimension</a>); <a name="l00081"></a>00081 <a name="l00083"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#2797f5604d1eb761364713402b2edc13">00083</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1HessianRecursiveGaussianImageFilter.html" title="Computes the Hessian matrix of an image by convolution with the Second and Cross...">HessianRecursiveGaussianImageFilter< InputImageType, HessianImageType></a> <a class="code" href="classitk_1_1HessianRecursiveGaussianImageFilter.html" title="Computes the Hessian matrix of an image by convolution with the Second and Cross...">HessianFilterType</a>; <a name="l00084"></a>00084 <a name="l00086"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#a1f5d8383cd07a4b95eccf663a8c6960">00086</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1Image.html" title="Templated n-dimensional image class.">Image< double, itkGetStaticConstMacro(ImageDimension) ></a> <a class="code" href="classitk_1_1Image.html" title="Templated n-dimensional image class.">UpdateBufferType</a>; <a name="l00087"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#84c43836b6844a956691af75131dad32">00087</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> UpdateBufferType::ValueType BufferValueType; <a name="l00088"></a>00088 <a name="l00090"></a>00090 <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="l00091"></a>00091 <a name="l00093"></a>00093 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(SigmaMinimum, <span class="keywordtype">double</span>); <a name="l00094"></a>00094 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(SigmaMinimum, <span class="keywordtype">double</span>); <a name="l00096"></a>00096 <a name="l00098"></a>00098 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(SigmaMaximum, <span class="keywordtype">double</span>); <a name="l00099"></a>00099 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(SigmaMaximum, <span class="keywordtype">double</span>); <a name="l00101"></a>00101 <a name="l00103"></a>00103 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(NumberOfSigmaSteps, <span class="keywordtype">int</span>); <a name="l00104"></a>00104 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(NumberOfSigmaSteps, <span class="keywordtype">int</span>); <a name="l00106"></a>00106 <a name="l00110"></a>00110 <a class="code" href="itkMacro_8h.html#b950b763422e5059348e6178e2a5f425">itkSetObjectMacro</a>( HessianToMeasureFilter, <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...">HessianToMeasureFilterType</a>); <a name="l00111"></a>00111 <a class="code" href="itkMacro_8h.html#f6bef9ee7e4c077b96a08848ed4e7660">itkGetObjectMacro</a>( HessianToMeasureFilter, <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...">HessianToMeasureFilterType</a>); <a name="l00113"></a>00113 <a name="l00114"></a>00114 <a name="l00115"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#3f41d983b3da5eae7b218648833193cb">00115</a> <span class="keyword">typedef</span> <span class="keyword">enum</span> { EquispacedSigmaSteps = 0, <a name="l00116"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#3f41d983b3da5eae7b218648833193cb040abc2d4edf1e4d43a5b2f0d9c0df61">00116</a> LogarithmicSigmaSteps = 1 } SigmaStepMethodType; <a name="l00117"></a>00117 <a name="l00120"></a>00120 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(SigmaStepMethod, SigmaStepMethodType); <a name="l00121"></a>00121 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(SigmaStepMethod, SigmaStepMethodType); <a name="l00122"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#19c78a21f7341ba9e1d7f337b9429263">00122</a> <span class="keywordtype">void</span> SetSigmaStepMethodToEquispaced() <a name="l00123"></a>00123 { <a name="l00124"></a>00124 this->SetSigmaStepMethod(Self::EquispacedSigmaSteps); <a name="l00125"></a>00125 } <a name="l00127"></a>00127 <a name="l00128"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#40abdc44e29f0dbd1f9248c02b55d202">00128</a> <span class="keywordtype">void</span> SetSigmaStepMethodToLogarithmic() <a name="l00129"></a>00129 { <a name="l00130"></a>00130 this->SetSigmaStepMethod(Self::LogarithmicSigmaSteps); <a name="l00131"></a>00131 } <a name="l00132"></a>00132 <a name="l00137"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#7938b8a6af570c851fce1c92b52ba6c0">00137</a> <span class="keyword">const</span> HessianImageType* GetHessianOutput()<span class="keyword"> const</span> <a name="l00138"></a>00138 <span class="keyword"> </span>{ <a name="l00139"></a>00139 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keyword">const </span>HessianImageType*<span class="keyword">></span>(this-><a class="code" href="classitk_1_1ProcessObject.html#f24a0bf37dae4c4ea24a03caf200588d">ProcessObject::GetOutput</a>(2)); <a name="l00140"></a>00140 } <a name="l00141"></a>00141 <a name="l00144"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#e1f45dcc2a036980da6bb8062b5a9332">00144</a> <span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#386ea018cab3835dcdff2603f4d2280e">OutputImageType</a>* GetScalesOutput()<span class="keyword"> const</span> <a name="l00145"></a>00145 <span class="keyword"> </span>{ <a name="l00146"></a>00146 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="namespaceHardConnectedComponentImageFilter.html#386ea018cab3835dcdff2603f4d2280e">OutputImageType</a>*<span class="keyword">></span>(this-><a class="code" href="classitk_1_1ProcessObject.html#f24a0bf37dae4c4ea24a03caf200588d">ProcessObject::GetOutput</a>(1)); <a name="l00147"></a>00147 } <a name="l00148"></a>00148 <a name="l00150"></a>00150 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(GenerateScalesOutput,<span class="keywordtype">bool</span>); <a name="l00151"></a>00151 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(GenerateScalesOutput,<span class="keywordtype">bool</span>); <a name="l00152"></a>00152 <a class="code" href="itkMacro_8h.html#9e7d129ffebb09fd28bc213e02d87248">itkBooleanMacro</a>(GenerateScalesOutput); <a name="l00154"></a>00154 <a name="l00156"></a>00156 <a class="code" href="itkMacro_8h.html#7ebdd33cc5e7d74720ced9099c034faa">itkSetMacro</a>(GenerateHessianOutput,<span class="keywordtype">bool</span>); <a name="l00157"></a>00157 <a class="code" href="itkMacro_8h.html#1600305bb01e39e87c472d8bf29bd1cf">itkGetMacro</a>(GenerateHessianOutput,<span class="keywordtype">bool</span>); <a name="l00158"></a>00158 <a class="code" href="itkMacro_8h.html#9e7d129ffebb09fd28bc213e02d87248">itkBooleanMacro</a>(GenerateHessianOutput); <a name="l00160"></a>00160 <a name="l00161"></a>00161 <a name="l00162"></a>00162 <span class="keyword">protected</span>: <a name="l00163"></a>00163 <a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html" title="A filter to enhance structures using Hessian eigensystem-based measures in a multiscale...">MultiScaleHessianBasedMeasureImageFilter</a>(); <a name="l00164"></a><a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#e3084bf756e78b0e587f6a43eca5c3d2">00164</a> <a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html#e3084bf756e78b0e587f6a43eca5c3d2">~MultiScaleHessianBasedMeasureImageFilter</a>() {}; <a name="l00165"></a>00165 <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="l00166"></a>00166 <a name="l00168"></a>00168 <span class="keywordtype">void</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#f75a5945cdd8315676941024a0b8c1e9">GenerateData</a>( <span class="keywordtype">void</span> ); <a name="l00169"></a>00169 <a name="l00170"></a>00170 <span class="keyword">private</span>: <a name="l00171"></a>00171 <span class="keywordtype">void</span> UpdateMaximumResponse(<span class="keywordtype">double</span> sigma); <a name="l00172"></a>00172 <a name="l00173"></a>00173 <span class="keywordtype">double</span> ComputeSigmaValue(<span class="keywordtype">int</span> scaleLevel); <a name="l00174"></a>00174 <a name="l00175"></a>00175 <span class="keywordtype">void</span> AllocateUpdateBuffer(); <a name="l00176"></a>00176 <a name="l00177"></a>00177 <span class="comment">//purposely not implemented</span> <a name="l00178"></a>00178 <a class="code" href="classitk_1_1MultiScaleHessianBasedMeasureImageFilter.html" title="A filter to enhance structures using Hessian eigensystem-based measures in a multiscale...">MultiScaleHessianBasedMeasureImageFilter</a>(<span class="keyword">const</span> <a class="code" href="namespaceHardConnectedComponentImageFilter.html#ac7d0120fe5292cdcdddb6163b8cb150">Self</a>&); <a name="l00179"></a>00179 <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="l00180"></a>00180 <a name="l00181"></a>00181 <span class="keywordtype">double</span> m_SigmaMinimum; <a name="l00182"></a>00182 <span class="keywordtype">double</span> m_SigmaMaximum; <a name="l00183"></a>00183 <a name="l00184"></a>00184 <span class="keywordtype">int</span> m_NumberOfSigmaSteps; <a name="l00185"></a>00185 SigmaStepMethodType m_SigmaStepMethod; <a name="l00186"></a>00186 <a name="l00187"></a>00187 <span class="keyword">typename</span> <a class="code" href="itkFEMMacro_8h.html#539cce1a3282ba59952dedcbf9cdb23f">HessianToMeasureFilterType::Pointer</a> m_HessianToMeasureFilter; <a name="l00188"></a>00188 <span class="keyword">typename</span> <a class="code" href="itkFEMMacro_8h.html#539cce1a3282ba59952dedcbf9cdb23f">HessianFilterType::Pointer</a> m_HessianFilter; <a name="l00189"></a>00189 <span class="keyword">typename</span> <a class="code" href="itkFEMMacro_8h.html#539cce1a3282ba59952dedcbf9cdb23f">UpdateBufferType::Pointer</a> m_UpdateBuffer; <a name="l00190"></a>00190 <a name="l00191"></a>00191 <span class="keywordtype">bool</span> m_GenerateScalesOutput; <a name="l00192"></a>00192 <span class="keywordtype">bool</span> m_GenerateHessianOutput; <a name="l00193"></a>00193 }; <a name="l00194"></a>00194 <a name="l00195"></a>00195 } <span class="comment">// end namespace itk</span> <a name="l00196"></a>00196 <a name="l00197"></a>00197 <span class="preprocessor">#ifndef ITK_MANUAL_INSTANTIATION</span> <a name="l00198"></a>00198 <span class="preprocessor"></span><span class="preprocessor">#include "itkMultiScaleHessianBasedMeasureImageFilter.txx"</span> <a name="l00199"></a>00199 <span class="preprocessor">#endif</span> <a name="l00200"></a>00200 <span class="preprocessor"></span> <a name="l00201"></a>00201 <span class="preprocessor">#endif</span> <a name="l00202"></a>00202 <span class="preprocessor"></span> </pre></div></div> <hr><address><small> Generated at Thu May 7 23:36:08 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>