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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 <fstream>
#include "itkImageFileWriter.h"
#include "itkImageFileReader.h"
#include "itkRawImageIO.h"
#define SPECIFIC_IMAGEIO_MODULE_TEST
int itkRawImageIOTest3(int argc, char*argv[])
{
typedef itk::Image<unsigned short,2> ImageType;
typedef ImageType::PixelType PixelType;
typedef itk::ImageRegionIterator<
ImageType > ImageIteratorType;
typedef itk::ImageRegionConstIterator<
ImageType > ImageConstIteratorType;
typedef itk::RawImageIO<PixelType,
ImageType::ImageDimension> RawImageIOType;
if(argc < 3)
{
std::cerr << "Usage: " << argv[0] << " Output1 Output2\n";
return EXIT_FAILURE;
}
// Create a source object (in this case a random image generator).
// The source object is templated on the output type.
//
ImageType::SizeType size;
size[0]=517; // prime numbers are good bug testers...
size[1]=293;
ImageType::RegionType region;
ImageType::IndexType index;
index.Fill(0);
region.SetIndex( index );
region.SetSize(size);
ImageType::Pointer image = ImageType::New();
image->SetRegions( region );
image->Allocate();
ImageIteratorType ii( image, region );
PixelType value = itk::NumericTraits< PixelType >::ZeroValue();
ii.GoToBegin();
while( !ii.IsAtEnd() )
{
ii.Set( value );
++value;
++ii;
}
RawImageIOType::Pointer io = RawImageIOType::New();
io->SetByteOrderToBigEndian();
// Write out the image
itk::ImageFileWriter<ImageType>::Pointer writer;
writer = itk::ImageFileWriter<ImageType>::New();
writer->SetInput( image );
writer->SetFileName(argv[1]);
writer->SetImageIO(io);
writer->Write();
// Create a source object (in this case a reader)
itk::ImageFileReader<ImageType>::Pointer reader;
reader = itk::ImageFileReader<ImageType>::New();
reader->SetImageIO(io);
reader->SetFileName(argv[1]);
reader->Update();
// Compare pixel by pixel in memory
ImageConstIteratorType it( reader->GetOutput(),
reader->GetOutput()->GetBufferedRegion() );
ImageConstIteratorType ot( image,
image->GetBufferedRegion() );
it.GoToBegin();
ot.GoToBegin();
while( !it.IsAtEnd() )
{
const PixelType iv = it.Get();
const PixelType ov = ot.Get();
if( iv != ov )
{
std::cerr << "Error in read/write of pixel " << it.GetIndex() << std::endl;
std::cerr << "Read value is : " << iv << std::endl;
std::cerr << "it should be : " << ov << std::endl;
std::cerr << "Test FAILED ! " << std::endl;
return EXIT_FAILURE;
}
++it;
++ot;
}
writer->SetInput(reader->GetOutput());
writer->SetFileName(argv[2]);
writer->SetInput(reader->GetOutput());
writer->Write();
std::cerr << "Test PASSED ! " << std::endl;
return EXIT_SUCCESS;
}
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