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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 <iostream>
#include "itkImage.h"
#include "itkFixedArray.h"
#include "itkImageAlgorithm.h"
int itkImageTest(int, char* [] )
{
typedef itk::Image<float,2> Image;
Image::Pointer image = Image::New();
image->DebugOn();
const char * const knownStringName = "My First Image For Testing.";
image->SetObjectName( knownStringName );
if( std::string(knownStringName) != image->GetObjectName() )
{
std::cerr << "ERROR: Object name not set and recovered correctly.\n"
<< std::string(knownStringName) << " != " << image->GetObjectName() << std::endl;
return EXIT_FAILURE;
}
image->GetSource();
image->DisconnectPipeline();
Image::SpacingType spacing; spacing.Fill(1.0);
Image::PointType origin; origin.Fill(1.0);
Image::DirectionType direction;
direction[0][0] = .5;
direction[0][1] = .7;
direction[1][0] = .7;
direction[1][1] = .5;
image->SetSpacing (spacing);
image->SetOrigin (origin);
image->SetDirection (direction);
double dspacing[Image::ImageDimension] = {2.0, 2.0};
double dorigin[Image::ImageDimension] = {2.0, 2.0};
image->SetSpacing (dspacing);
image->SetOrigin (dorigin);
float fspacing[Image::ImageDimension] = {3.0, 3.0};
float forigin[Image::ImageDimension] = {3.0, 3.0};
image->SetSpacing (fspacing);
image->SetOrigin (forigin);
// test inverse direction
std::cout << "Test inverse direction." << std::endl;
Image::DirectionType product;
product = direction * image->GetInverseDirection();
double eps = 1e-06;
if( std::fabs( product[0][0] - 1.0 ) > eps ||
std::fabs( product[1][1] - 1.0 ) > eps ||
std::fabs( product[0][1] ) > eps ||
std::fabs( product[1][0] ) > eps )
{
std::cerr << "Inverse direction test failed: "
<< "direction * inverse: " << product << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test transform to/from physical vector." << std::endl;
typedef itk::FixedArray<float, 2> GradientType;
GradientType truthGradient, outputGradient, testGradient;
truthGradient[0] = 1.0;
truthGradient[1] = 1.0;
image->TransformLocalVectorToPhysicalVector( truthGradient, outputGradient );
image->TransformPhysicalVectorToLocalVector( outputGradient, testGradient );
if( std::fabs( truthGradient[0] - testGradient[0] ) > eps ||
std::fabs( truthGradient[1] - testGradient[1] ) > eps )
{
std::cerr << "Transform to/from PhysicalVector test failed: "
<< "truthGradient: " << truthGradient << std::endl
<< "testGradient: " << testGradient << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test GetSmallestRegionContainingRegion." << std::endl;
image->SetSpacing(spacing);
origin.Fill(1.2);
image->SetOrigin(origin);
direction.SetIdentity();
image->SetDirection(direction);
Image::RegionType region;
Image::IndexType index;
index.Fill(0);
Image::SizeType size;
size.Fill(4);
region.SetIndex(index);
region.SetSize(size);
image->SetRegions(region);
Image::Pointer imageRef = Image::New();
Image::SpacingType spacingRef; spacingRef.Fill(2);
Image::PointType originRef; originRef.Fill(0);
Image::DirectionType directionRef; directionRef.SetIdentity();
imageRef->SetSpacing(spacingRef);
imageRef->SetOrigin(originRef);
imageRef->SetDirection(directionRef);
Image::RegionType regionRef;
Image::IndexType indexRef;
Image::SizeType sizeRef;
indexRef.Fill(0);
sizeRef.Fill(5);
regionRef.SetIndex(indexRef);
regionRef.SetSize(sizeRef);
imageRef->SetRegions(regionRef);
Image::RegionType boxRegion = itk::ImageAlgorithm::EnlargeRegionOverBox(image->GetLargestPossibleRegion(),
image.GetPointer(),
imageRef.GetPointer());
Image::IndexType correctIndex; correctIndex.Fill(0);
Image::SizeType correctSize; correctSize.Fill(3);
if( !(boxRegion.GetIndex() == correctIndex) ||
!(boxRegion.GetSize() == correctSize))
{
std::cerr << "EnlargeRegionOverBox test failed: "
<< "boxRegion: " << boxRegion << std::endl;
return EXIT_FAILURE;
}
std::cout << "Print: " << std::endl;
image->Print(std::cout);
std::cout << "Test Graft." << std::endl;
image->Graft(imageRef);
if(image->GetPixelContainer() != imageRef->GetPixelContainer() )
{
std::cerr << "Graft test failed." << std::endl;
return EXIT_FAILURE;
}
return (EXIT_SUCCESS);
}
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