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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.
*
*=========================================================================*/
#include "itkNeighborhoodOperatorImageFunction.h"
#include "itkGaussianOperator.h"
int itkNeighborhoodOperatorImageFunctionTest(int, char* [] )
{
const unsigned int Dimension = 3;
typedef float PixelType;
typedef itk::Image< PixelType, Dimension > ImageType;
typedef itk::GaussianOperator<PixelType,3> NeighborhoodOperatorType;
typedef itk::NeighborhoodOperatorImageFunction< ImageType,PixelType>
FunctionType;
// Create and allocate the image
ImageType::Pointer image = ImageType::New();
ImageType::SizeType size;
ImageType::IndexType start;
ImageType::RegionType region;
size[0] = 50;
size[1] = 50;
size[2] = 50;
start.Fill( 0 );
region.SetIndex( start );
region.SetSize( size );
image->SetRegions( region );
image->Allocate();
ImageType::PixelType initialValue = 27;
image->FillBuffer( initialValue );
FunctionType::Pointer function = FunctionType::New();
function->SetInputImage( image );
NeighborhoodOperatorType* oper= new NeighborhoodOperatorType;
oper->CreateToRadius(3);
function->SetOperator(*oper);
delete oper;
itk::Index<3> index;
index.Fill(25);
FunctionType::OutputType Blur;
std::cout << "EvaluateAtIndex: ";
Blur = function->EvaluateAtIndex( index );
// since the input image is constant
// the should be equal to the initial value
if( itk::Math::abs( initialValue - Blur ) > 10e-7 )
{
std::cerr << "[FAILED] : Error in Blur computation" << std::endl;
return EXIT_FAILURE;
}
std::cout << "[PASSED] " << std::endl;
std::cout << "EvaluateAtContinuousIndex: ";
FunctionType::ContinuousIndexType continuousIndex;
continuousIndex.Fill(25);
function->EvaluateAtContinuousIndex( continuousIndex );
std::cout << "[PASSED] " << std::endl;
std::cout << "EvaluateAtPoint: ";
FunctionType::PointType point;
point[0]=25;
point[1]=25;
point[2]=25;
function->Evaluate( point );
std::cout << "[PASSED] " << std::endl;
std::cout << function << std::endl;
std::cout << "[TEST DONE] " << std::endl;
return EXIT_SUCCESS;
}
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