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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkNeighborhoodOperatorImageFunctionTest.cxx,v $
Language: C++
Date: $Date: 2003-09-10 14:30:09 $
Version: $Revision: 1.7 $
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.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <stdio.h>
#include "itkNeighborhoodOperatorImageFunction.h"
#include "itkImage.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( vnl_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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