/usr/include/ITK-4.5/itkIOTestHelper.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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.
*
*=========================================================================*/
#ifndef __itkIOTestHelper_h
#define __itkIOTestHelper_h
#include "ITKIOImageBaseExport.h"
#include <string>
#include "itksys/SystemTools.hxx"
#include "itkImageFileWriter.h"
#include "itkImageFileReader.h"
#include "vnl/vnl_random.h"
namespace itk
{
class IOTestHelper
{
public:
template <typename TImage>
static typename TImage::Pointer ReadImage( const std::string &fileName,
const bool zeroOrigin = false )
{
typedef itk::ImageFileReader<TImage> ReaderType;
typename ReaderType::Pointer reader = ReaderType::New();
{
reader->SetFileName( fileName.c_str() );
try
{
reader->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an exception: " << std::endl;
std::cout << err << " " << __FILE__ << " " << __LINE__ << std::endl;
throw err;
}
catch(...)
{
std::cout << "Error while reading in image for patient " << fileName << std::endl;
throw;
}
}
typename TImage::Pointer image = reader->GetOutput();
if(zeroOrigin)
{
double origin[TImage::ImageDimension];
for(unsigned int i = 0; i < TImage::ImageDimension; i++)
{
origin[i]=0;
}
image->SetOrigin(origin);
}
return image;
}
template <typename ImageType,typename ImageIOType>
static void
WriteImage(typename ImageType::Pointer &image ,
const std::string &filename)
{
typedef itk::ImageFileWriter< ImageType > WriterType;
typename WriterType::Pointer writer = WriterType::New();
typename ImageIOType::Pointer imageio(ImageIOType::New());
writer->SetImageIO(imageio);
writer->SetFileName(filename.c_str());
writer->SetInput(image);
try
{
writer->Update();
}
catch (itk::ExceptionObject &err) {
std::cerr << "Exception Object caught: " << std::endl
<< err << std::endl;
throw;
}
}
//
// generate random pixels of various types
static void
RandomPix(vnl_random &randgen,itk::RGBPixel<unsigned char> &pix)
{
for(unsigned int i = 0; i < 3; i++)
{
pix[i] = randgen.lrand32(itk::NumericTraits<unsigned char>::max());
}
}
template <typename TPixel>
static void
RandomPix(vnl_random &randgen, TPixel &pix)
{
pix = randgen.lrand32(itk::NumericTraits<TPixel>::max());
}
static void
RandomPix(vnl_random &randgen, double &pix)
{
pix = randgen.drand64(itk::NumericTraits<double>::max());
}
static void
RandomPix(vnl_random &randgen, float &pix)
{
pix = randgen.drand64(itk::NumericTraits<float>::max());
}
static int Remove(const char *fname)
{
return itksys::SystemTools::RemoveFile(fname);
}
template <typename ImageType>
static void SetIdentityDirection(typename ImageType::Pointer &im)
{
typename ImageType::DirectionType dir;
dir.SetIdentity();
im->SetDirection(dir);
}
template <typename ImageType>
static typename ImageType::Pointer
AllocateImageFromRegionAndSpacing(const typename ImageType::RegionType ®ion,
const typename ImageType::SpacingType &spacing)
{
typename ImageType::Pointer rval = ImageType::New();
SetIdentityDirection<ImageType>(rval);
rval->SetSpacing(spacing);
rval->SetRegions(region);
rval->Allocate();
return rval;
}
template <typename ImageType>
static typename ImageType::Pointer
AllocateImageFromRegionAndSpacing(const typename ImageType::RegionType ®ion,
const typename ImageType::SpacingType &spacing,
int vecLength)
{
typename ImageType::Pointer rval = ImageType::New();
rval->SetSpacing(spacing);
rval->SetRegions(region);
rval->SetVectorLength(vecLength);
rval->Allocate();
return rval;
}
};
}
#endif // __itkIOTestHelper_h
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