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<h1>itkImageHelper.h</h1><a href="itkImageHelper_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: itkImageHelper.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"> Language: C++</span>
<a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2008-10-18 17:18:08 $</span>
<a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.6 $</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 __itkImageHelper_h</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkImageHelper_h</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="itkConceptChecking_8h.html">itkConceptChecking.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="l00047"></a>00047 <span class="comment">// Forward reference ImageBase</span>
<a name="l00048"></a>00048 <span class="keyword">template</span> <
<a name="l00049"></a>00049 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NImageDimension
<a name="l00050"></a>00050 > <span class="keyword">class </span>ImageBase;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">template</span> <<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NImageDimension, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NLoop>
<a name="l00053"></a><a class="code" href="classitk_1_1ImageHelper.html">00053</a> <span class="keyword">class </span><a class="code" href="classitk_1_1ImageHelper.html" title="Fast Index/Offset computation.">ImageHelper</a>
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keyword">public</span>:
<a name="l00056"></a><a class="code" href="classitk_1_1ImageHelper.html#6407162c75e85c843433c0c6f89e1cd8">00056</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1ImageBase.html" title="Base class for templated image classes.">ImageBase<NImageDimension></a> <a class="code" href="classitk_1_1ImageBase.html" title="Base class for templated image classes.">ImageType</a>;
<a name="l00057"></a><a class="code" href="classitk_1_1ImageHelper.html#f1d00b09e9b8f6d3646dd0085b4b913a">00057</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1Index.html">ImageType::IndexType</a> <a class="code" href="classitk_1_1Index.html">IndexType</a>;
<a name="l00058"></a><a class="code" href="classitk_1_1ImageHelper.html#10463f2e858aa5467bc15afa87586bf6">00058</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1Offset.html" title="Represent the offset between two n-dimensional indexes in a n-dimensional image.">ImageType::OffsetType</a> <a class="code" href="classitk_1_1Offset.html" title="Represent the offset between two n-dimensional indexes in a n-dimensional image.">OffsetType</a>;
<a name="l00059"></a><a class="code" href="classitk_1_1ImageHelper.html#d9a58467f0af59d2114a48aadf968108">00059</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1ImageBase.html#d471614204f0b309681cf22cbaa7f69c">ImageType::IndexValueType</a> <a class="code" href="classitk_1_1ImageHelper.html#d9a58467f0af59d2114a48aadf968108">IndexValueType</a>;
<a name="l00060"></a><a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">00060</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classitk_1_1ImageBase.html#b9c35eb1d7bf223b607700ef7a43bbf7">ImageType::OffsetValueType</a> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a>;
<a name="l00061"></a><a class="code" href="classitk_1_1ImageHelper.html#11cb3f37630c08d11c19e0807a0371a6">00061</a> <span class="keyword">typedef</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool<false></a> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolFalse</a>;
<a name="l00062"></a><a class="code" href="classitk_1_1ImageHelper.html#c7a01c5d00f164898205fb6802ffd9fd">00062</a> <span class="keyword">typedef</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool<true></a> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolTrue</a>;
<a name="l00063"></a>00063
<a name="l00065"></a><a class="code" href="classitk_1_1ImageHelper.html#8a25240d2cc8aa84aeefee42d3d2b8da">00065</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#8a25240d2cc8aa84aeefee42d3d2b8da">ComputeIndex</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00066"></a>00066 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> offset,
<a name="l00067"></a>00067 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> offsetTable[],
<a name="l00068"></a>00068 <a class="code" href="classitk_1_1Index.html">IndexType</a> &index)
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3">ImageHelper<NImageDimension,NLoop-1>::</a>
<a name="l00071"></a>00071 <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3"> ComputeIndexInner</a>(bufferedRegionIndex,
<a name="l00072"></a>00072 offset,
<a name="l00073"></a>00073 offsetTable,
<a name="l00074"></a>00074 index,
<a name="l00075"></a>00075 <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool</a><(NLoop==1)>());
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a><a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3">00078</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3">ComputeIndexInner</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00079"></a>00079 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> &offset,
<a name="l00080"></a>00080 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> offsetTable[],
<a name="l00081"></a>00081 <a class="code" href="classitk_1_1Index.html">IndexType</a> &index,
<a name="l00082"></a>00082 <span class="keyword">const</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolFalse</a>& )
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 index[NLoop] = <span class="keyword">static_cast<</span><a class="code" href="classitk_1_1ImageHelper.html#d9a58467f0af59d2114a48aadf968108">IndexValueType</a><span class="keyword">></span>(offset / offsetTable[NLoop]);
<a name="l00085"></a>00085 offset = offset - (index[NLoop] * offsetTable[NLoop]);
<a name="l00086"></a>00086 index[NLoop] = index[NLoop] + bufferedRegionIndex[NLoop];
<a name="l00087"></a>00087 <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3">ImageHelper<NImageDimension, NLoop-1>::</a>
<a name="l00088"></a>00088 <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3"> ComputeIndexInner</a>(bufferedRegionIndex,
<a name="l00089"></a>00089 offset,
<a name="l00090"></a>00090 offsetTable,
<a name="l00091"></a>00091 index,
<a name="l00092"></a>00092 <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool</a><(NLoop==1)>());
<a name="l00093"></a>00093
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a><a class="code" href="classitk_1_1ImageHelper.html#fb2d40133d8801303e058accbe3db463">00096</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#222c237c0b22a1d37a72e4e515c9f7c3">ComputeIndexInner</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00097"></a>00097 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> &offset,
<a name="l00098"></a>00098 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> [],
<a name="l00099"></a>00099 <a class="code" href="classitk_1_1Index.html">IndexType</a> &index,
<a name="l00100"></a>00100 <span class="keyword">const</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolTrue</a>& )
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="comment">// Do last</span>
<a name="l00103"></a>00103 index[0] = bufferedRegionIndex[0] + <span class="keyword">static_cast<</span><a class="code" href="classitk_1_1ImageHelper.html#d9a58467f0af59d2114a48aadf968108">IndexValueType</a><span class="keyword">></span>(offset);
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="comment">// ComputeOffset</span>
<a name="l00107"></a>00107 <span class="comment">//</span>
<a name="l00108"></a><a class="code" href="classitk_1_1ImageHelper.html#8c2ba5efc4ed792999fe7d42c29fb6f4">00108</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#8c2ba5efc4ed792999fe7d42c29fb6f4">ComputeOffset</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00109"></a>00109 <span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &index,
<a name="l00110"></a>00110 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> offsetTable[],
<a name="l00111"></a>00111 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> &offset)
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2">ImageHelper<NImageDimension,NLoop-1>::</a>
<a name="l00114"></a>00114 <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2"> ComputeOffsetInner</a>(bufferedRegionIndex,
<a name="l00115"></a>00115 index,
<a name="l00116"></a>00116 offsetTable,
<a name="l00117"></a>00117 offset,
<a name="l00118"></a>00118 <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool</a><(NLoop==1)>());
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120
<a name="l00121"></a><a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2">00121</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2">ComputeOffsetInner</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00122"></a>00122 <span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &index,
<a name="l00123"></a>00123 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> offsetTable[],
<a name="l00124"></a>00124 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> &offset,
<a name="l00125"></a>00125 <span class="keyword">const</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolFalse</a>& )
<a name="l00126"></a>00126 {
<a name="l00127"></a>00127 offset = offset + (index[NLoop] - bufferedRegionIndex[NLoop])*offsetTable[NLoop];
<a name="l00128"></a>00128 <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2">ImageHelper<NImageDimension, NLoop-1>::</a>
<a name="l00129"></a>00129 <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2"> ComputeOffsetInner</a>(bufferedRegionIndex,
<a name="l00130"></a>00130 index,
<a name="l00131"></a>00131 offsetTable,
<a name="l00132"></a>00132 offset,
<a name="l00133"></a>00133 <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">Concept::Detail::UniqueType_bool</a><(NLoop==1)>());
<a name="l00134"></a>00134
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a><a class="code" href="classitk_1_1ImageHelper.html#15c9fad79d2c13a45f5e73c3a6b83e67">00137</a> <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classitk_1_1ImageHelper.html#2c361d4a77c75983af2ed8d44057e7e2">ComputeOffsetInner</a>(<span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &bufferedRegionIndex,
<a name="l00138"></a>00138 <span class="keyword">const</span> <a class="code" href="classitk_1_1Index.html">IndexType</a> &index,
<a name="l00139"></a>00139 <span class="keyword">const</span> <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> [],
<a name="l00140"></a>00140 <a class="code" href="classitk_1_1ImageHelper.html#c12b306e12a110abfe1878a6ce3f6720">OffsetValueType</a> &offset,
<a name="l00141"></a>00141 <span class="keyword">const</span> <a class="code" href="structitk_1_1Concept_1_1Detail_1_1UniqueType__bool.html">UniqueTypeBoolTrue</a>& )
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 <span class="comment">// Do last</span>
<a name="l00144"></a>00144 offset = offset + index[0] - bufferedRegionIndex[0];
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00147"></a>00147 };
<a name="l00148"></a>00148 } <span class="comment">// end namespace itk</span>
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="preprocessor">#endif</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span>
</pre></div></div>
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