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itkSpectra1DSupportWindowToMaskImageFilter.hxx
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itkSpectra1DSupportWindowToMaskImageFilter.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 itkSpectra1DSupportWindowToMaskImageFilter_hxx
#define itkSpectra1DSupportWindowToMaskImageFilter_hxx
#include "itkSpectra1DSupportWindowImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIteratorWithIndex.h"
#include "itkMetaDataObject.h"
namespace itk
{
template <typename TInputImage, typename TOutputImage>
Spectra1DSupportWindowToMaskImageFilter<TInputImage, TOutputImage>::Spectra1DSupportWindowToMaskImageFilter()
: m_BackgroundValue(NumericTraits<OutputPixelType>::ZeroValue())
, m_ForegroundValue(NumericTraits<OutputPixelType>::max())
{
m_MaskIndex.Fill(0);
}
template <typename TInputImage, typename TOutputImage>
void
Spectra1DSupportWindowToMaskImageFilter<TInputImage, TOutputImage>::GenerateData()
{
this->AllocateOutputs();
const InputImageType * input = this->GetInput();
using InputPixelType = typename InputImageType::PixelType;
const InputPixelType & inputPixel = input->GetPixel(this->GetMaskIndex());
using Spectra1DSupportWindowFilterType = Spectra1DSupportWindowImageFilter<OutputImageType>;
using FFT1DSizeType = typename Spectra1DSupportWindowFilterType::FFT1DSizeType;
const MetaDataDictionary & dict = input->GetMetaDataDictionary();
FFT1DSizeType fft1DSize = 32;
ExposeMetaData<FFT1DSizeType>(dict, "FFT1DSize", fft1DSize);
OutputImageType * output = this->GetOutput();
output->FillBuffer(this->GetBackgroundValue());
for (typename InputPixelType::const_iterator lineIt = inputPixel.begin(); lineIt != inputPixel.end(); ++lineIt)
{
const IndexType startIndex = *lineIt;
IndexType index = startIndex;
for (FFT1DSizeType sampleIndex = 0; sampleIndex < fft1DSize; ++sampleIndex)
{
index[0] = startIndex[0] + sampleIndex;
output->SetPixel(index, this->GetForegroundValue());
}
}
}
} // end namespace itk
#endif