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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkPolylineMask2DImageFilter.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkPolylineMask2DImageFilter_h
#define __itkPolylineMask2DImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"
namespace itk
{
/** \class PolylineMask2DImageFilter
* \brief Implements 2D image masking operation constrained by a contour.
*
* This class is parameterized over input image type, contour defined by a polyline,
* and output image type. If the input image is three dimensional, the masking operation is
* performed on each slice (2D image). The output image will have two regions demarcated
* by the contour i.e inside(masked) and outside region. The pixels in the
* masked region will keep their original intensity values. Whereas, intensity
* value of pixels outside the masked region will be set to zero.
*
* \warning The Polygon represented by the input Polyline must be a convex polygon.
* \warning The Polygon's inside is defined by the standard clock-wise
* convention. That is, when walking along the polygon, the inside of the
* polygon is at the right-hand side. Note also that this must be interpreted
* in the natural coordinate system used by ITK, not the one used in computer
* graphics.
*
* \ingroup ImageToImageFilter
* \sa PolylineMaskImageFilter
*/
template <class TInputImage, class TPolyline,
class TOutputImage>
class ITK_EXPORT PolylineMask2DImageFilter:public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef PolylineMask2DImageFilter Self;
typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro( PolylineMask2DImageFilter, ImageToImageFilter );
/** Number of dimensions. */
itkStaticConstMacro(NDimensions, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(NOutputDimensions, unsigned int,
TOutputImage::ImageDimension);
/** Some convenient typedefs for input image */
typedef TInputImage InputImageType;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename InputImageType::PixelType InputImagePixelType;
/* typedef for the polyline type */
typedef TPolyline PolylineType;
/* typedef for the output image */
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
/** Read in image and polyline inputs */
void SetInput1( const InputImageType * image);
void SetInput2( const PolylineType * polyline);
/* Generate Data */
void GenerateData(void);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(SameDimensionCheck,
(Concept::SameDimension<NDimensions, NOutputDimensions>));
itkConceptMacro(IntConvertibleOutputCheck,
(Concept::Convertible<int, OutputImagePixelType>));
itkConceptMacro(OutputEqualityComparableCheck,
(Concept::EqualityComparable<OutputImagePixelType>));
itkConceptMacro(InputConvertibleToOutputCheck,
(Concept::Convertible<InputImagePixelType, OutputImagePixelType>));
/** End concept checking */
#endif
protected:
PolylineMask2DImageFilter();
virtual ~PolylineMask2DImageFilter() {};
private:
PolylineMask2DImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkPolylineMask2DImageFilter.txx"
#endif
#endif
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