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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 itkImageToPathFilter_h
#define itkImageToPathFilter_h
#include "itkImage.h"
#include "itkPathSource.h"
namespace itk
{
/**
* \class ImageToPathFilter
* \brief Base class for filters that take an image as input and produce an path as output.
*
* ImageToPathFilter is the base class for all process objects that output
* path data and require image data as input. Specifically, this class
* defines the SetInput() method for defining the input to a filter.
*
* This code was contributed in the Insight Journal paper:
* "ContourExtractor2DImageFilter: A subpixel-precision image isocontour extraction filter."
* by Pincus Z.
* https://www.insight-journal.org/browse/publication/72
*
* \ingroup ImageFilters
* \ingroup ITKPath
*/
template <typename TInputImage, typename TOutputPath>
class ITK_TEMPLATE_EXPORT ImageToPathFilter : public PathSource<TOutputPath>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ImageToPathFilter);
/** Standard class type aliases. */
using Self = ImageToPathFilter;
using Superclass = PathSource<TOutputPath>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ImageToPathFilter);
/** Some convenient type alias. */
using InputImageType = TInputImage;
using InputImagePointer = typename InputImageType::Pointer;
using InputImageConstPointer = typename InputImageType::ConstPointer;
using InputImageRegionType = typename InputImageType::RegionType;
using InputImagePixelType = typename InputImageType::PixelType;
/** ImageDimension constants */
static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
/** Set/Get the image input of this process object. */
using Superclass::SetInput;
virtual void
SetInput(const InputImageType * input);
virtual void
SetInput(unsigned int, const TInputImage * image);
const InputImageType *
GetInput();
const InputImageType *
GetInput(unsigned int idx);
protected:
ImageToPathFilter();
~ImageToPathFilter() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkImageToPathFilter.hxx"
#endif
#endif
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