static mitk::Image::Pointer GenerateMaskImage(unsigned int dimX,
unsigned int dimY,
unsigned int dimZ,
float spacingX = 1,
float spacingY = 1,
float spacingZ = 1)
{
typedef itk::Image< TPixelType, 3 > ImageType;
typename ImageType::RegionType imageRegion;
imageRegion.SetSize(0, dimX);
imageRegion.SetSize(1, dimY);
imageRegion.SetSize(2, dimZ);
typename ImageType::SpacingType spacing;
spacing[0] = spacingX;
spacing[1] = spacingY;
spacing[2] = spacingZ;
mitk::Point3D origin; origin.Fill(0.0);
itk::Matrix<double, 3, 3> directionMatrix; directionMatrix.SetIdentity();
typename ImageType::Pointer image = ImageType::New();
image->SetSpacing( spacing );
image->SetOrigin( origin );
image->SetDirection( directionMatrix );
image->SetLargestPossibleRegion( imageRegion );
image->SetBufferedRegion( imageRegion );
image->SetRequestedRegion( imageRegion );
image->Allocate();
image->FillBuffer(1);
mitk::Image::Pointer mitkImage = mitk::Image::New();
mitkImage->InitializeByItk( image.GetPointer() );
mitkImage->SetVolume( image->GetBufferPointer() );
return mitkImage;
}
typename PatchExtractor<PValue>::ImageType::Pointer
PatchExtractor<PValue>::ExtractPatch()
{
ContIndexType startIndex;
for(unsigned int i = 0; i < 2; i++)
{
startIndex[i] = m_Center[i] - (m_Size[i] / 2.0);
}
startIndex[2] = 0;
PointType newOrigin;
m_Image->TransformContinuousIndexToPhysicalPoint(startIndex, newOrigin);
typename ImageType::Pointer patch = ImageType::New();
patch->SetDirection(m_Image->GetDirection());
patch->SetOrigin(newOrigin);
patch->SetSpacing(m_Image->GetSpacing());
typename ImageType::RegionType region;
m_Size[2] = 1;
region.SetSize(m_Size);
patch->SetRegions(region);
patch->Allocate();
typedef itk::NearestNeighborInterpolateImageFunction<ImageType, double> InterpolatorType;
typename InterpolatorType::Pointer interpolator = InterpolatorType::New();
interpolator->SetInputImage(m_Image);
itk::ImageRegionIterator<ImageType> imageIt(patch, region);
while(!imageIt.IsAtEnd())
{
typename ImageType::IndexType index = imageIt.GetIndex();
PointType point;
patch->TransformIndexToPhysicalPoint(index, point);
if(interpolator->IsInsideBuffer(point))
imageIt.Set(interpolator->Evaluate(point));
else
imageIt.Set(0);
++imageIt;
}
return patch;
}
static mitk::Image::Pointer GenerateGradientWithDimXImage(unsigned int dimX,
unsigned int dimY,
unsigned int dimZ,
float spacingX = 1,
float spacingY = 1,
float spacingZ = 1)
{
typedef itk::Image< TPixelType, 3 > ImageType;
typename ImageType::RegionType imageRegion;
imageRegion.SetSize(0, dimX);
imageRegion.SetSize(1, dimY);
imageRegion.SetSize(2, dimZ);
typename ImageType::SpacingType spacing;
spacing[0] = spacingX;
spacing[1] = spacingY;
spacing[2] = spacingZ;
mitk::Point3D origin; origin.Fill(0.0);
itk::Matrix<double, 3, 3> directionMatrix; directionMatrix.SetIdentity();
typename ImageType::Pointer image = ImageType::New();
image->SetSpacing( spacing );
image->SetOrigin( origin );
image->SetDirection( directionMatrix );
image->SetLargestPossibleRegion( imageRegion );
image->SetBufferedRegion( imageRegion );
image->SetRequestedRegion( imageRegion );
image->Allocate();
image->FillBuffer(0.0);
typedef itk::ImageRegionIterator<ImageType> IteratorOutputType;
IteratorOutputType it(image, imageRegion);
it.GoToBegin();
TPixelType val = 0;
while(!it.IsAtEnd())
{
it.Set(val % dimX);
val++;
++it;
}
mitk::Image::Pointer mitkImage = mitk::Image::New();
mitkImage->InitializeByItk( image.GetPointer() );
mitkImage->SetVolume( image->GetBufferPointer() );
return mitkImage;
}