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 itkUnsharpMaskImageFilter_hxx
19 #define itkUnsharpMaskImageFilter_hxx
20
21 #include "itkUnsharpMaskImageFilter.h"
22 #include "itkBinaryGeneratorImageFilter.h"
23 #include "itkNumericTraits.h"
24 #include "itkProgressAccumulator.h"
25
26 namespace itk
27 {
28
29 template< typename TInputImage, typename TOutputImage, typename TInternalPrecision >
30 UnsharpMaskImageFilter< TInputImage, TOutputImage, TInternalPrecision >
UnsharpMaskImageFilter()31 ::UnsharpMaskImageFilter()
32 :m_Amount(0.5),
33 m_Threshold(0),
34 m_Clamp(NumericTraits<OutputPixelType>::IsInteger)
35 // clamping is on for integral types, and off for floating types
36 // this gives intuitive behavior for integral types
37 // and skips min/max checks for floating types
38 {
39 m_Sigmas.Fill(1.0);
40 }
41
42 template< typename TInputImage, typename TOutputImage, typename TInternalPrecision >
43 void
44 UnsharpMaskImageFilter< TInputImage, TOutputImage, TInternalPrecision >
GenerateInputRequestedRegion()45 ::GenerateInputRequestedRegion()
46 {
47 // call the superclass' implementation of this method. this should
48 // copy the output requested region to the input requested region
49 Superclass::GenerateInputRequestedRegion();
50
51 // This filter needs all of the input
52 InputImagePointer image = const_cast<InputImageType *>(this->GetInput());
53 if ( image )
54 {
55 image->SetRequestedRegion(this->GetInput()->GetLargestPossibleRegion());
56 }
57 }
58
59
60 template< typename TInputImage, typename TOutputImage, typename TInternalPrecision >
61 void
62 UnsharpMaskImageFilter< TInputImage, TOutputImage, TInternalPrecision >
VerifyPreconditions()63 ::VerifyPreconditions() ITKv5_CONST
64 {
65 Superclass::VerifyPreconditions();
66 if (m_Threshold < 0.0)
67 {
68 itkExceptionMacro(<< "Threshold must be non-negative!");
69 }
70 }
71
72
73 template< typename TInputImage, typename TOutputImage, typename TInternalPrecision >
74 void
75 UnsharpMaskImageFilter< TInputImage, TOutputImage, TInternalPrecision >
GenerateData()76 ::GenerateData()
77 {
78 typename TInputImage::Pointer input = TInputImage::New();
79 input->Graft(const_cast<TInputImage *>(this->GetInput()));
80 typename GaussianType::Pointer gaussianF = GaussianType::New();
81 gaussianF->SetInput(input);
82 gaussianF->SetSigmaArray(m_Sigmas);
83 gaussianF->SetNumberOfWorkUnits(this->GetNumberOfWorkUnits());
84
85 using USMType = UnsharpMaskingFunctor< InputPixelType,
86 TInternalPrecision,
87 OutputPixelType >;
88 using BinaryFunctorType = BinaryGeneratorImageFilter< TInputImage,
89 typename GaussianType::OutputImageType,
90 TOutputImage >;
91 typename BinaryFunctorType::Pointer functorF = BinaryFunctorType::New();
92 functorF->SetInput1(this->GetInput());
93 functorF->SetInput2(gaussianF->GetOutput());
94 USMType usmT(m_Amount, m_Threshold, m_Clamp);
95 functorF->SetFunctor(usmT);
96 functorF->SetNumberOfWorkUnits(this->GetNumberOfWorkUnits());
97
98 ProgressAccumulator::Pointer progress = ProgressAccumulator::New();
99 progress->SetMiniPipelineFilter(this);
100 progress->RegisterInternalFilter(gaussianF, 0.7);
101 progress->RegisterInternalFilter(functorF, 0.3);
102
103 functorF->GraftOutput(this->GetOutput());
104 functorF->Update();
105 this->GraftOutput(functorF->GetOutput());
106 }
107
108
109 template< typename TInputImage, typename TOutputImage, typename TInternalPrecision >
110 void
111 UnsharpMaskImageFilter< TInputImage, TOutputImage, TInternalPrecision >
PrintSelf(std::ostream & os,Indent indent) const112 ::PrintSelf(std::ostream & os, Indent indent) const
113 {
114 Superclass::PrintSelf(os, indent);
115 os << indent << "Sigmas: " << m_Sigmas << std::endl;
116 os << indent << "Amount: " << m_Amount << std::endl;
117 os << indent << "Threshold: " << m_Threshold << std::endl;
118 os << indent << "Clamp: " << m_Clamp << std::endl;
119 }
120
121 } // end namespace itk
122
123 #endif
124