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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 __itkCastImageFilter_h
#define __itkCastImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include "itkProgressReporter.h"
namespace itk
{
namespace Functor
{
/** \class Cast
*
* \deprecated This functor is no longer used by the CastImageFilter.
* \ingroup ITKImageFilterBase
*/
template< typename TInput, typename TOutput >
class Cast
{
public:
Cast() {}
virtual ~Cast() {}
bool operator!=(const Cast &) const
{
return false;
}
bool operator==(const Cast & other) const
{
return !( *this != other );
}
inline TOutput operator()(const TInput & A) const
{
return static_cast< TOutput >( A );
}
};
}
/** \class CastImageFilter
*
* \brief Casts input pixels to output pixel type.
*
* This filter is templated over the input image type
* and the output image type.
*
* A typical use is to cast a
* \code
* itk::Image<type1, dim>
* \endcode
* to a
* \code
* itk::Image<type2, dim>
* \endcode
*
* This filter can also be used to cast a
* \code
* itk::VectorImage<type1, dim>
* \endcode
* to a
* \code
* itk::VectorImage<type2, dim>
* \endcode
*
* If you need to perform a dimensionaly reduction, you may want
* to use the ExtractImageFilter instead of the CastImageFilter.
*
* \ingroup IntensityImageFilters MultiThreaded
* \sa UnaryFunctorImageFilter
* \sa ExtractImageFilter
* \ingroup ITKImageFilterBase
*
* \wiki
* \wikiexample{ImageProcessing/CastImageFilter,Cast an image from one type to another}
* \endwiki
*/
template< typename TInputImage, typename TOutputImage >
class CastImageFilter:
public UnaryFunctorImageFilter< TInputImage, TOutputImage,
Functor::Cast<
typename TInputImage::PixelType,
typename TOutputImage::PixelType > >
{
public:
/** Standard class typedefs. */
typedef CastImageFilter Self;
typedef UnaryFunctorImageFilter< TInputImage, TOutputImage,
Functor::Cast<
typename TInputImage::PixelType,
typename TOutputImage::PixelType >
> Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
typedef typename Superclass::OutputImageRegionType OutputImageRegionType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(CastImageFilter, UnaryFunctorImageFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( InputConvertibleToOutputCheck,
( Concept::Convertible< typename TInputImage::PixelType,
typename TOutputImage::PixelType > ) );
// End concept checking
#endif
protected:
CastImageFilter();
// virtual ~CastImageFilter() {} default OK
void GenerateData();
void ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId);
private:
CastImageFilter(const Self &); //purposely not implemented
void operator=(const Self &); //purposely not implemented
};
} // end namespace itk
#endif
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkCastImageFilter.hxx"
#endif
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