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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"
#include "itkTestingHashImageFilter.h"
#include "itkTestingMacros.h"
int itkNiftiImageIOTest12(int ac, char* av[])
{
//
// first argument is passing in the writable directory to do all testing
if(ac > 1) {
char *testdir = *++av;
--ac;
itksys::SystemTools::ChangeDirectory(testdir);
}
if(ac != 2)
return EXIT_FAILURE;
char *arg1 = av[1];
// make large RGB Image
typedef itk::VectorImage<unsigned char, 3 > ImageType;
ImageType::RegionType region;
ImageType::SizeType size = {{2024, 1024, 1024}};
region.SetSize( size );
ImageType::Pointer image = ImageType::New();
image->SetRegions( region );
image->SetNumberOfComponentsPerPixel(3);
image->Allocate();
{ //Fill in entire image
ImageType::PixelType value(3);
itk::ImageRegionIterator<ImageType> ri(image,region);
while(!ri.IsAtEnd())
{
ImageType::IndexType idx = ri.GetIndex();
value[0] = idx[0]%256;
value[1] = idx[1]%256;
value[2] = idx[2]%256;
ri.Set( value );
++ri;
}
}
typedef itk::Testing::HashImageFilter<ImageType> Hasher;
Hasher::Pointer hasher = Hasher::New();
hasher->SetInput( image );
hasher->InPlaceOff();
hasher->Update();
std::string originalHash = hasher->GetHash();
std::cout << "Original image hash: " << originalHash << std::endl;
try
{
itk::IOTestHelper::WriteImage<ImageType,itk::NiftiImageIO>(image,arg1);
image = itk::IOTestHelper::ReadImage<ImageType>( arg1 );
hasher->SetInput( image );
hasher->Update();
std::string readHash = hasher->GetHash();
std::cout << "Read hash: " << readHash << std::endl;
TEST_EXPECT_EQUAL( originalHash, readHash );
}
catch (itk::ExceptionObject &)
{
}
return EXIT_SUCCESS;
}
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