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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 "itkCropImageFilter.h"
#include "itkTestingMacros.h"
int itkCropImageFilter3DTest( int, char* [] )
{
// Define the dimension of the images
const unsigned int ImageDimension = 3;
// Declare the pixel types of the images
typedef unsigned short PixelType;
// Declare the types of the images
typedef itk::Image< PixelType, ImageDimension > ImageType;
ImageType::RegionType region;
const unsigned int dimSize(8);
ImageType::RegionType::SizeType size = {{dimSize, dimSize, dimSize}};
ImageType::RegionType::IndexType index = {{0, 0, 0}};
region.SetSize(size);
region.SetIndex(index);
ImageType::Pointer image = ImageType::New();
image->SetRegions(region);
image->Allocate();
itk::ImageRegionIterator< ImageType > it( image, region );
for( unsigned short i = 0; !it.IsAtEnd(); ++it, ++i )
{
it.Set( i );
}
itk::CropImageFilter< ImageType, ImageType> ::Pointer cropFilter =
itk::CropImageFilter< ImageType, ImageType >::New();
EXERCISE_BASIC_OBJECT_METHODS( cropFilter, CropImageFilter,
ExtractImageFilter );
cropFilter->SetInput( image );
// Set the filter properties
ImageType::SizeType extractSize = {{1, 1, 1}};
cropFilter->SetBoundaryCropSize( extractSize );
cropFilter->SetUpperBoundaryCropSize( extractSize );
TEST_SET_GET_VALUE( extractSize, cropFilter->GetUpperBoundaryCropSize() );
cropFilter->SetLowerBoundaryCropSize( extractSize );
TEST_SET_GET_VALUE( extractSize, cropFilter->GetLowerBoundaryCropSize() );
TRY_EXPECT_NO_EXCEPTION( cropFilter->Update() );
ImageType::Pointer croppedImage = cropFilter->GetOutput();
// check size of cropped image
ImageType::RegionType::SizeType croppedSize =
croppedImage->GetLargestPossibleRegion().GetSize();
for( unsigned i = 0; i < ImageType::RegionType::SizeType::GetSizeDimension();
i++ )
{
if( croppedSize[i] != dimSize - 2 )
{
std::cerr << "Unexpected cropped Image size[" << i
<< "] = " << croppedSize[i] << ". Expected "
<< dimSize << std::endl;
return EXIT_FAILURE;
}
}
ImageType::RegionType subRegion;
ImageType::RegionType::SizeType subSize = {{dimSize-2, dimSize-2, dimSize-2}};
ImageType::RegionType::IndexType subIndex = {{1, 1, 1}};
subRegion.SetSize( subSize );
subRegion.SetIndex( subIndex );
itk::ImageRegionIterator< ImageType > it1( image, subRegion );
itk::ImageRegionIterator< ImageType > it2( croppedImage,
croppedImage->GetLargestPossibleRegion() );
for(; !it1.IsAtEnd() && !it2.IsAtEnd(); ++it1, ++it2)
{
if( it1.Get() != it2.Get() )
{
std::cerr << "Expected Pixel " << it1.Get()
<< " saw " << it2.Get() << " instead."
<< std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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