[vtkusers] Errorwriting out image file

[David Brayford]

When I run the following code. I get the following error output in the
terminal window on a 64bit Linux system.

	typedef itk::VTKImageToImageFilter<InputImageType> VTKToITKConnector;
        VTKToITKConnector::Pointer VTK_to_ITK_filter = VTKToITKConnector::New();

       // pass the VTK volume data into ITK
        VTK_to_ITK_filter->SetInput(vol);
        VTK_to_ITK_filter->Update();

	imagePtr = VTK_to_ITK_filter->GetOutput();

	typedef itk::ResampleImageFilter<InputImageType, InputImageType > FilterType;
	FilterType::Pointer filter = FilterType::New();
	filter->SetInput( imagePtr );
	filter->SetDefaultPixelValue( 0 );

// perform some image processing within ITK

        // write out image file
        writer->SetFileName( str );
        writer->SetInput( rescaler->GetOutput() );

        try
        {
          std::cout << "Writing image: " << str << std::endl;
          writer->Update();
        }
        catch( itk::ExceptionObject & err )
        {
          std::cerr << "ERROR: ExceptionObject caught ! " << str << std::endl;
          std::cerr << err << std::endl;
        }

            filter->Update();



Writing  image: output_1.png
ERROR: ExceptionObject caught ! output_1.png

Writing  image: _output_1.png
ERROR: ExceptionObject caught ! output_1.png

itk::ExceptionObject (0xc40640)
Location: "void itk::ImageFileWriter<TInputImage>::Write() [with
TInputImage = itk::Image<unsigned char, 3u>]"
File: /usr/local/include/InsightToolkit/IO/itkImageFileWriter.txx
Line: 271
Description: itk::ERROR: ImageFileWriter(0xc768d0): Largest possible
region does not fully contain requested paste IO regionPaste IO
region: ImageIORegion (0x7fffffffd470)
  Dimension: 3
  Index: 0 0 0
  Size: 521143585 18446744072883491688 1
Largest possible region: ImageRegion (0x7fffffffd530)
  Dimension: 3
  Index: [0, 0, 0]
  Size: [521143585, 18446744072883491688, 1]

ERROR: ExceptionObject caught ! When update is called after file
output_1.pngis being written

itk::ExceptionObject (0x7fffd4000bf0)
Location: "TElement* itk::ImportImageContainer<TElementIdentifier,
TElement>::AllocateElements(TElementIdentifier) const [with
TElementIdentifier = long unsigned int, TElement = short unsigned
int]"
File: /usr/local/include/InsightToolkit/Common/itkImportImageContainer.txx
Line: 188
Description: Failed to allocate memory for image.