ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkBinaryMagnitudeImageFilter.h
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1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0.txt
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *=========================================================================*/
18 #ifndef __itkBinaryMagnitudeImageFilter_h
19 #define __itkBinaryMagnitudeImageFilter_h
20 
22 
23 namespace itk
24 {
25 namespace Functor
26 {
32 template< class TInput1, class TInput2, class TOutput >
33 class Modulus2
34 {
35 public:
36  Modulus2() {}
37  ~Modulus2() {}
38  bool operator!=(const Modulus2 &) const
39  {
40  return false;
41  }
43 
44  bool operator==(const Modulus2 & other) const
45  {
46  return !( *this != other );
47  }
48 
49  inline TOutput operator()(const TInput1 & A,
50  const TInput2 & B) const
51  {
52  const double dA = static_cast< double >( A );
53  const double dB = static_cast< double >( B );
54 
55  return static_cast< TOutput >( vcl_sqrt(dA * dA + dB * dB) );
56  }
57 };
58 }
84 template< class TInputImage1, class TInputImage2, class TOutputImage >
85 class ITK_EXPORT BinaryMagnitudeImageFilter:
86  public
87  BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
88  Functor::Modulus2<
89  typename TInputImage1::PixelType,
90  typename TInputImage2::PixelType,
91  typename TOutputImage::PixelType > >
92 {
93 public:
96  typedef BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
98  typename TInputImage1::PixelType,
99  typename TInputImage2::PixelType,
100  typename TOutputImage::PixelType >
104 
106  itkNewMacro(Self);
107 
109  itkTypeMacro(BinaryMagnitudeImageFilter,
111 
112 #ifdef ITK_USE_CONCEPT_CHECKING
113 
114  itkConceptMacro( Input1ConvertibleToDoubleCheck,
116  itkConceptMacro( Input2ConvertibleToDoubleCheck,
118  itkConceptMacro( DoubleConvertibleToOutputCheck,
120 
122 #endif
123 protected:
126 private:
127  BinaryMagnitudeImageFilter(const Self &); //purposely not implemented
128  void operator=(const Self &); //purposely not implemented
129 };
130 } // end namespace itk
132 
133 #endif
134