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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkClampImageFilter_hxx
#define itkClampImageFilter_hxx
#include "itkProgressReporter.h"
#include "itkMath.h"
namespace itk
{
namespace Functor
{
template <typename TInput, typename TOutput>
Clamp<TInput, TOutput>::Clamp()
: m_LowerBound(NumericTraits<OutputType>::NonpositiveMin())
, m_UpperBound(NumericTraits<OutputType>::max())
{}
template <typename TInput, typename TOutput>
auto
Clamp<TInput, TOutput>::GetLowerBound() const -> OutputType
{
return m_LowerBound;
}
template <typename TInput, typename TOutput>
auto
Clamp<TInput, TOutput>::GetUpperBound() const -> OutputType
{
return m_UpperBound;
}
template <typename TInput, typename TOutput>
void
Clamp<TInput, TOutput>::SetBounds(const OutputType lowerBound, const OutputType upperBound)
{
if (lowerBound > upperBound)
{
itkGenericExceptionMacro("invalid bounds: [" << lowerBound << "; " << upperBound << ']');
}
m_LowerBound = lowerBound;
m_UpperBound = upperBound;
}
template <typename TInput, typename TOutput>
bool
Clamp<TInput, TOutput>::operator==(const Self & other) const
{
return m_UpperBound == other.m_UpperBound && m_LowerBound == other.m_LowerBound;
}
} // end namespace Functor
template <typename TInputImage, typename TOutputImage>
auto
ClampImageFilter<TInputImage, TOutputImage>::GetLowerBound() const -> OutputPixelType
{
return this->GetFunctor().GetLowerBound();
}
template <typename TInputImage, typename TOutputImage>
auto
ClampImageFilter<TInputImage, TOutputImage>::GetUpperBound() const -> OutputPixelType
{
return this->GetFunctor().GetUpperBound();
}
template <typename TInputImage, typename TOutputImage>
void
ClampImageFilter<TInputImage, TOutputImage>::SetBounds(const OutputPixelType lowerBound,
const OutputPixelType upperBound)
{
if (Math::ExactlyEquals(lowerBound, this->GetFunctor().GetLowerBound()) &&
Math::ExactlyEquals(upperBound, this->GetFunctor().GetUpperBound()))
{
return;
}
this->GetFunctor().SetBounds(lowerBound, upperBound);
this->Modified();
}
template <typename TInputImage, typename TOutputImage>
void
ClampImageFilter<TInputImage, TOutputImage>::GenerateData()
{
if (this->GetInPlace() && this->CanRunInPlace() &&
this->GetLowerBound() <= NumericTraits<OutputPixelType>::NonpositiveMin() &&
this->GetUpperBound() >= NumericTraits<OutputPixelType>::max())
{
// If the filter is asked to run in-place, is able to run in-place,
// and the specified bounds are equal to the output-type limits,
// then there is nothing to do. To avoid iterating over all the pixels for
// nothing, graft the input to the output, generate a fake progress and exit.
this->AllocateOutputs();
ProgressReporter progress(this, 0, 1);
return;
}
Superclass::GenerateData();
}
template <typename TInputImage, typename TOutputImage>
void
ClampImageFilter<TInputImage, TOutputImage>::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent
<< "Lower bound: " << static_cast<typename NumericTraits<OutputPixelType>::PrintType>(this->GetLowerBound())
<< std::endl;
os << indent
<< "Upper bound: " << static_cast<typename NumericTraits<OutputPixelType>::PrintType>(this->GetUpperBound())
<< std::endl;
}
} // namespace itk
#endif
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