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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 itkLabelToRGBImageFilter_hxx
#define itkLabelToRGBImageFilter_hxx
/*
*
* This code was contributed in the Insight Journal paper:
* "The watershed transform in ITK - discussion and new developments"
* by Beare R., Lehmann G.
* https://www.insight-journal.org/browse/publication/92
*
*/
namespace itk
{
/**
*
*/
template <typename TLabelImage, typename TOutputImage>
LabelToRGBImageFilter<TLabelImage, TOutputImage>::LabelToRGBImageFilter()
{
m_BackgroundValue = LabelPixelType{};
NumericTraits<OutputPixelType>::SetLength(m_BackgroundColor, 3);
m_BackgroundColor.Fill(OutputPixelValueType{});
}
template <typename TLabelImage, typename TOutputImage>
unsigned int
LabelToRGBImageFilter<TLabelImage, TOutputImage>::GetNumberOfColors() const
{
return this->GetFunctor().GetNumberOfColors();
}
template <typename TLabelImage, typename TOutputImage>
void
LabelToRGBImageFilter<TLabelImage, TOutputImage>::ResetColors()
{
this->GetFunctor().ResetColors();
}
template <typename TLabelImage, typename TOutputImage>
void
LabelToRGBImageFilter<TLabelImage, TOutputImage>::AddColor(ComponentType r, ComponentType g, ComponentType b)
{
this->GetFunctor().AddColor(r, g, b);
}
template <typename TLabelImage, typename TOutputImage>
void
LabelToRGBImageFilter<TLabelImage, TOutputImage>::GenerateOutputInformation()
{
// this methods is overloaded so that if the output image is a
// VectorImage then the correct number of components are set.
Superclass::GenerateOutputInformation();
OutputImageType * output = this->GetOutput();
if (!output)
{
return;
}
if (output->GetNumberOfComponentsPerPixel() != 3)
{
output->SetNumberOfComponentsPerPixel(3);
}
}
template <typename TLabelImage, typename TOutputImage>
void
LabelToRGBImageFilter<TLabelImage, TOutputImage>::BeforeThreadedGenerateData()
{
this->GetFunctor().SetBackgroundValue(m_BackgroundValue);
this->GetFunctor().SetBackgroundColor(m_BackgroundColor);
}
/**
*
*/
template <typename TLabelImage, typename TOutputImage>
void
LabelToRGBImageFilter<TLabelImage, TOutputImage>::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent
<< "BackgroundValue: " << static_cast<typename NumericTraits<LabelPixelType>::PrintType>(m_BackgroundValue)
<< std::endl
<< indent
<< "ColorBackground: " << static_cast<typename NumericTraits<OutputPixelType>::PrintType>(m_BackgroundColor)
<< std::endl;
}
} // end namespace itk
#endif
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