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itkBlockMatchingMetricImageToDisplacementCalculator.hxx
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itkBlockMatchingMetricImageToDisplacementCalculator.hxx
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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 itkBlockMatchingMetricImageToDisplacementCalculator_hxx
#define itkBlockMatchingMetricImageToDisplacementCalculator_hxx
#include "itkImageRegionConstIterator.h"
#include "itkImageRegionIterator.h"
namespace itk
{
namespace BlockMatching
{
template <typename TMetricImage, typename TDisplacementImage>
MetricImageToDisplacementCalculator<TMetricImage, TDisplacementImage>::MetricImageToDisplacementCalculator()
: m_CacheMetricImage(false)
, m_RegionsDefined(false)
{
m_MetricImageImage = nullptr;
m_DisplacementImage = nullptr;
m_MetricImageDuplicator = MetricImageDuplicatorType::New();
m_MultiThreader = MultiThreaderBase::New();
}
template <typename TMetricImage, typename TDisplacementImage>
void
MetricImageToDisplacementCalculator<TMetricImage, TDisplacementImage>::SetMetricImagePixel(
const PointType & point,
const IndexType & index,
MetricImageType * metricImage)
{
if (m_CacheMetricImage)
{
// Copy the image contents to a new image.
m_MetricImageDuplicator->SetInputImage(metricImage);
m_MetricImageDuplicator->Update();
m_MetricImageImage->SetPixel(index, m_MetricImageDuplicator->GetOutput());
m_CenterPointsImage->SetPixel(index, point);
}
}
template <typename TMetricImage, typename TDisplacementImage>
void
MetricImageToDisplacementCalculator<TMetricImage, TDisplacementImage>::SetDisplacementImage(
DisplacementImageType * image)
{
if (this->m_DisplacementImage.GetPointer() != image)
{
this->m_DisplacementImage = image;
this->Modified();
}
if (m_CacheMetricImage && (!m_MetricImageImage.GetPointer() ||
m_MetricImageImage->GetLargestPossibleRegion() != image->GetLargestPossibleRegion()))
{
// We create a new image and reallocate here every time because if we try to
// keep the same image reallocation appears to do something funny with the
// SmartPointer pixels.
m_MetricImageImage = MetricImageImageType::New();
m_CenterPointsImage = CenterPointsImageType::New();
m_MetricImageImage->CopyInformation(image);
m_MetricImageImage->SetRegions(image->GetLargestPossibleRegion());
m_MetricImageImage->Allocate();
m_CenterPointsImage->CopyInformation(image);
m_CenterPointsImage->SetRegions(image->GetLargestPossibleRegion());
m_CenterPointsImage->Allocate();
this->Modified();
}
}
} // end namespace BlockMatching
} // end namespace itk
#endif