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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 __makeRandomImageBsplineInterpolator_h
#define __makeRandomImageBsplineInterpolator_h
#include "itkBSplineResampleImageFunction.h"
#include "itkRandomImageSource.h"
template<typename BSplineInterpolatorFunctionType>
typename BSplineInterpolatorFunctionType::Pointer makeRandomImageInterpolator(const int SplineOrder)
{
typedef typename BSplineInterpolatorFunctionType::InputImageType ImageType;
/** Generate a random input image and connect to BSpline decomposition filter */
typedef itk::RandomImageSource<ImageType> SourceType;
typename SourceType::Pointer source = SourceType::New();
{
typedef typename ImageType::DirectionType DirectionType;
DirectionType nonTrivialDirection;
nonTrivialDirection[0][0] = 0;
nonTrivialDirection[0][1] = -1;
nonTrivialDirection[1][0] = 1;
nonTrivialDirection[1][1] = 0;
std::cout << "DIRECTION\n" << nonTrivialDirection << std::endl;
source->SetDirection( nonTrivialDirection );
}
{
typedef typename ImageType::SpacingType SpacingType;
SpacingType spacing;
spacing.Fill( 2.0 );
source->SetSpacing( spacing );
}
{
typedef typename ImageType::PointType PointType;
PointType origin;
origin.Fill ( 10.0 );
source->SetOrigin( origin );
}
{
typedef typename ImageType::SizeType SizeType;
SizeType size;
size.Fill( 32 );
source->SetSize( size );
}
source->SetMin( 0.0 );
source->SetMax( 10.0 );
source->Update();
typename ImageType::Pointer randImage = source->GetOutput();
/** Set up a BSplineInterpolateImageFunction for comparison. */
typename BSplineInterpolatorFunctionType::Pointer interpolator = BSplineInterpolatorFunctionType::New();
interpolator->SetSplineOrder( SplineOrder );
interpolator->SetInputImage( randImage );
return interpolator;
}
#endif
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