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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 "itkNiftiImageIOTest.h"
int itkNiftiImageIOTest6(int ac, char *av[])
{
if(ac > 1)
{
char *testdir = *++av;
itksys::SystemTools::ChangeDirectory(testdir);
}
else
{
return EXIT_FAILURE;
}
int success(EXIT_SUCCESS);
typedef itk::VectorImage<double,3> VectorImageType;
VectorImageType::RegionType imageRegion;
VectorImageType::SizeType size;
VectorImageType::IndexType index;
VectorImageType::SpacingType spacing;
VectorImageType::VectorLengthType vecLength(4);
for(unsigned i = 0; i < 3; i++)
{
size[i] = 3;
index[i] = 0;
spacing[i] = 1.0;
}
imageRegion.SetSize(size); imageRegion.SetIndex(index);
VectorImageType::Pointer vecImage =
itk::IOTestHelper::AllocateImageFromRegionAndSpacing<VectorImageType>(imageRegion, spacing,vecLength);
itk::ImageRegionIterator<VectorImageType>
it(vecImage,vecImage->GetLargestPossibleRegion());
double val(0.0);
for(it.GoToBegin(); !it.IsAtEnd(); ++it)
{
VectorImageType::PixelType p(vecLength);
for(unsigned i = 0; i < vecLength; i++)
{
p[i] = val;
val++;
}
it.Set(p);
}
const std::string testfname("vectorImage.nii.gz");
VectorImageType::Pointer readback;
try
{
itk::IOTestHelper::WriteImage<VectorImageType,itk::NiftiImageIO>(vecImage,testfname);
readback = itk::IOTestHelper::ReadImage<VectorImageType>(testfname);
}
catch(itk::ExceptionObject &err)
{
std::cout << "itkNiftiImageIOTest6" << std::endl
<< "Exception Object caught: " << std::endl
<< err << std::endl;
throw;
}
itk::ImageRegionIterator<VectorImageType>
readbackIt(readback,readback->GetLargestPossibleRegion());
for(it.GoToBegin(),readbackIt.GoToBegin();
!it.IsAtEnd() && !readbackIt.IsAtEnd();
++it, ++readbackIt)
{
VectorImageType::PixelType p(vecLength),
readbackP(vecLength);
p = it.Get();
readbackP = readbackIt.Get();
if(p != readbackP)
{
std::cout << "Pixel mismatch at index "
<< it.GetIndex()
<< " original = "
<< p
<< " read value = "
<< readbackP
<< std::endl;
success = EXIT_FAILURE;
break;
}
}
itk::IOTestHelper::Remove(testfname.c_str());
return success;
}
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