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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 itkNonThreadedShrinkImageFilter_h
#define itkNonThreadedShrinkImageFilter_h
#if !defined( ITK_LEGACY_REMOVE )
#include "itkShrinkImageFilter.h"
namespace itk
{
/** \class NonThreadedShrinkImageFilter
* \brief Reduce the size of an image by an integer factor.
*
* NonThreadedShrinkImageFilter reduces the size of an image by an
* integer factor. The algorithm implemented is a simple
* subsample. Since this filter produces an image which is a different
* resolution and with different pixel spacing than its input image,
* it needs to override several of the methods defined in
* ProcessObject in order to properly manage the pipeline execution
* model. In particular, this filter overrides
* ProcessObject::GenerateInputRequestedRegion() and
* ProcessObject::GenerateOutputInformation().
*
* NOTE: This filter runs the ShrinkImageFilter with the number of
* threads set to 1. To avoid confusion, developers shopuld replace
* this class with ShrinkImageFilter. If you need to limit the number
* of threads, instantiate the afilter and apply the
* SetNumberOfThreads(1) methods.
* \deprecated
* \ingroup ITKDeprecated
* \ingroup GeometricTransform
*/
template< typename TInputImage, typename TOutputImage >
class NonThreadedShrinkImageFilter:
public ShrinkImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef NonThreadedShrinkImageFilter 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(NonThreadedShrinkImageFilter, ShrinkImageFilter);
virtual void SetNumberOfThreads(ThreadIdType) ITK_OVERRIDE
{
Superclass::SetNumberOfThreads(1);
}
protected:
NonThreadedShrinkImageFilter()
{
Superclass::SetNumberOfThreads(1);
}
private:
ITK_DISALLOW_COPY_AND_ASSIGN(NonThreadedShrinkImageFilter);
};
} // end namespace itk
#endif //#if !defined( ITK_LEGACY_REMOVE )
#endif
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