ITK
4.1.0
Insight Segmentation and Registration Toolkit
|
00001 /*========================================================================= 00002 * 00003 * Copyright Insight Software Consortium 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); 00006 * you may not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0.txt 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 * 00017 *=========================================================================*/ 00018 #ifndef __itkNearestNeighborInterpolateImageFunction_h 00019 #define __itkNearestNeighborInterpolateImageFunction_h 00020 00021 #include "itkInterpolateImageFunction.h" 00022 00023 namespace itk 00024 { 00037 template< class TInputImage, class TCoordRep = double > 00038 class ITK_EXPORT NearestNeighborInterpolateImageFunction: 00039 public InterpolateImageFunction< TInputImage, TCoordRep > 00040 { 00041 public: 00043 typedef NearestNeighborInterpolateImageFunction Self; 00044 typedef InterpolateImageFunction< TInputImage, TCoordRep > Superclass; 00045 typedef SmartPointer< Self > Pointer; 00046 typedef SmartPointer< const Self > ConstPointer; 00047 00049 itkTypeMacro(NearestNeighborInterpolateImageFunction, 00050 InterpolateImageFunction); 00051 00053 itkNewMacro(Self); 00054 00056 typedef typename Superclass::OutputType OutputType; 00057 00059 typedef typename Superclass::InputImageType InputImageType; 00060 00062 itkStaticConstMacro(ImageDimension, unsigned int, Superclass::ImageDimension); 00063 00065 typedef typename Superclass::IndexType IndexType; 00066 00068 typedef typename Superclass::ContinuousIndexType ContinuousIndexType; 00069 00078 virtual OutputType EvaluateAtContinuousIndex( 00079 const ContinuousIndexType & index) const 00080 { 00081 IndexType nindex; 00082 00083 this->ConvertContinuousIndexToNearestIndex(index, nindex); 00084 return static_cast< OutputType >( this->GetInputImage()->GetPixel(nindex) ); 00085 } 00086 00087 protected: 00088 NearestNeighborInterpolateImageFunction(){} 00089 ~NearestNeighborInterpolateImageFunction(){} 00090 void PrintSelf(std::ostream & os, Indent indent) const 00091 { Superclass::PrintSelf(os, indent); } 00092 private: 00093 NearestNeighborInterpolateImageFunction(const Self &); //purposely not 00094 // implemented 00095 void operator=(const Self &); //purposely not 00096 00097 // implemented 00098 }; 00099 } // end namespace itk 00100 00101 #endif 00102