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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkCropImageFilter.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 __itkCropImageFilter_h
#define __itkCropImageFilter_h
#include "itkExtractImageFilter.h"
namespace itk
{
/** \class CropImageFilter
* \brief Decrease the image size by cropping the image by an itk::Size at
* both the upper and lower bounds of the largest possible region.
*
* CropImageFilter changes the image boundary of an image by removing
* pixels outside the target region. The target region is not specified in
* advance, but calculated in BeforeThreadedGenerateData().
*
* This filter uses ExtractImageFilter to perform the cropping.
*
* \ingroup GeometricTransforms
*/
template <class TInputImage, class TOutputImage>
class ITK_EXPORT CropImageFilter:
public ExtractImageFilter<TInputImage,TOutputImage>
{
public:
/** Standard class typedefs. */
typedef CropImageFilter Self;
typedef ExtractImageFilter<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(CropImageFilter, ExtractImageFilter);
/** Typedef to describe the output and input image region types. */
typedef typename Superclass::OutputImageRegionType OutputImageRegionType;
typedef typename Superclass::InputImageRegionType InputImageRegionType;
/** Typedef to describe the type of pixel. */
typedef typename Superclass::OutputImagePixelType OutputImagePixelType;
typedef typename Superclass::InputImagePixelType InputImagePixelType;
/** Typedef to describe the output and input image index and size types. */
typedef typename Superclass::OutputImageIndexType OutputImageIndexType;
typedef typename Superclass::InputImageIndexType InputImageIndexType;
typedef typename Superclass::OutputImageSizeType OutputImageSizeType;
typedef typename Superclass::InputImageSizeType InputImageSizeType;
typedef InputImageSizeType SizeType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,
Superclass::InputImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
Superclass::OutputImageDimension);
/** Set/Get the cropping sizes for the upper and lower boundaries. */
itkSetMacro(UpperBoundaryCropSize, SizeType);
itkGetConstMacro(UpperBoundaryCropSize, SizeType);
itkSetMacro(LowerBoundaryCropSize, SizeType);
itkGetConstMacro(LowerBoundaryCropSize, SizeType);
void SetBoundaryCropSize(const SizeType & s)
{
this->SetUpperBoundaryCropSize( s );
this->SetLowerBoundaryCropSize( s );
}
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputConvertibleToOutputCheck,
(Concept::Convertible<InputImagePixelType, OutputImagePixelType>));
itkConceptMacro(SameDimensionCheck,
(Concept::SameDimension<InputImageDimension, OutputImageDimension>));
/** End concept checking */
#endif
protected:
CropImageFilter()
{
m_UpperBoundaryCropSize.Fill(0);
m_LowerBoundaryCropSize.Fill(0);
}
~CropImageFilter() {}
void PrintSelf(std::ostream& os, Indent indent) const;
void GenerateOutputInformation();
private:
CropImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
SizeType m_UpperBoundaryCropSize;
SizeType m_LowerBoundaryCropSize;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkCropImageFilter.txx"
#endif
#endif
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