ITK
4.1.0
Insight Segmentation and Registration Toolkit
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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 __itkComplexToModulusImageFilter_h 00019 #define __itkComplexToModulusImageFilter_h 00020 00021 #include "itkUnaryFunctorImageFilter.h" 00022 #include "vnl/vnl_math.h" 00023 00024 namespace itk 00025 { 00032 namespace Functor 00033 { 00034 template< class TInput, class TOutput > 00035 class ComplexToModulus 00036 { 00037 public: 00038 ComplexToModulus() {} 00039 ~ComplexToModulus() {} 00040 bool operator!=(const ComplexToModulus &) const 00041 { 00042 return false; 00043 } 00044 00045 bool operator==(const ComplexToModulus & other) const 00046 { 00047 return !( *this != other ); 00048 } 00049 00050 inline TOutput operator()(const TInput & A) const 00051 { 00052 return (TOutput)( vcl_sqrt( A.real() * A.real() 00053 + A.imag() * A.imag() ) ); 00054 } 00055 }; 00056 } 00057 00058 template< class TInputImage, class TOutputImage > 00059 class ITK_EXPORT ComplexToModulusImageFilter: 00060 public 00061 UnaryFunctorImageFilter< TInputImage, TOutputImage, 00062 Functor::ComplexToModulus< 00063 typename TInputImage::PixelType, 00064 typename TOutputImage::PixelType > > 00065 { 00066 public: 00068 typedef ComplexToModulusImageFilter Self; 00069 typedef UnaryFunctorImageFilter< 00070 TInputImage, TOutputImage, 00071 Functor::ComplexToModulus< typename TInputImage::PixelType, 00072 typename TOutputImage::PixelType > > Superclass; 00073 00074 typedef SmartPointer< Self > Pointer; 00075 typedef SmartPointer< const Self > ConstPointer; 00076 00078 itkNewMacro(Self); 00079 00081 itkTypeMacro(ComplexToModulusImageFilter, 00082 UnaryFunctorImageFilter); 00083 00084 typedef typename TInputImage::PixelType InputPixelType; 00085 typedef typename TOutputImage::PixelType OutputPixelType; 00086 typedef typename NumericTraits< InputPixelType >::ValueType InputPixelValueType; 00087 00088 #ifdef ITK_USE_CONCEPT_CHECKING 00089 00090 itkConceptMacro( InputMultiplyOperatorCheck, 00091 ( Concept::MultiplyOperator< InputPixelValueType > ) ); 00092 00094 #endif 00095 protected: 00096 ComplexToModulusImageFilter() {} 00097 virtual ~ComplexToModulusImageFilter() {} 00098 private: 00099 ComplexToModulusImageFilter(const Self &); //purposely not implemented 00100 void operator=(const Self &); //purposely not implemented 00101 }; 00102 } // end namespace itk 00104 00105 #endif 00106