ITK  6.0.0
Insight Toolkit
itkRGBToLuminanceImageFilter.h
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1/*=========================================================================
2 *
3 * Copyright NumFOCUS
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 * https://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 itkRGBToLuminanceImageFilter_h
19#define itkRGBToLuminanceImageFilter_h
20
22
23namespace itk
24{
37namespace Functor
38{
39template <typename TInput, typename TOutput>
41{
42public:
43 using ComponentType = typename TInput::ComponentType;
45
46 bool
48 {
49 return true;
50 }
51
53
54 inline TOutput
55 operator()(const TInput & A) const
56 {
57 return static_cast<TOutput>(A.GetLuminance());
58 }
59};
60} // namespace Functor
61
62template <typename TInputImage, typename TOutputImage>
63class ITK_TEMPLATE_EXPORT RGBToLuminanceImageFilter : public UnaryGeneratorImageFilter<TInputImage, TOutputImage>
64{
65public:
66 ITK_DISALLOW_COPY_AND_MOVE(RGBToLuminanceImageFilter);
67
74
76 itkNewMacro(Self);
77
79 itkOverrideGetNameOfClassMacro(RGBToLuminanceImageFilter);
80
81#ifdef ITK_USE_CONCEPT_CHECKING
82 // Begin concept checking
83 itkConceptMacro(InputHasNumericTraitsCheck,
85 // End concept checking
86#endif
87
88protected:
90 {
91#if !defined(ITK_WRAPPING_PARSER)
92 Superclass::SetFunctor(FunctorType());
93#endif
94 }
95 ~RGBToLuminanceImageFilter() override = default;
96};
97} // end namespace itk
98
99#endif
typename TInput::ComponentType ComponentType
typename itk::NumericTraits< ComponentType >::RealType RealType
bool operator==(const RGBToLuminance &) const
TOutput operator()(const TInput &A) const
ITK_UNEQUAL_OPERATOR_MEMBER_FUNCTION(RGBToLuminance)
Base class for all process objects that output image data.
The base class for all process objects (source, filters, mappers) in the Insight data processing pipe...
Converts an RGB image into a grayscale image.
~RGBToLuminanceImageFilter() override=default
Implements pixel-wise generic "operation" on one image.
Functor::Add2< typename TInputImage1::PixelType, typename TInputImage2::PixelType, typename TOutputImage::PixelType > FunctorType
#define itkConceptMacro(name, concept)
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....