typedef itk::StatisticsImageFilter<InternalImageType> StatisticsImageFilterType;
typedef itk::BinaryBallStructuringElement<InternalPixelType,InputImageDimension > KernelType;
typedef clitk::ConditionalBinaryDilateImageFilter<InternalImageType, InternalImageType , KernelType> ConditionalBinaryDilateImageFilterType;
-#if ITK_VERSION_MAJOR >= 4
typedef itk::Testing::ComparisonImageFilter<InternalImageType, InternalImageType> DifferenceImageFilterType;
-#else
- typedef itk::DifferenceImageFilter<InternalImageType, InternalImageType> DifferenceImageFilterType;
-#endif
typedef itk::CastImageFilter<InternalImageType, OutputImageType> OutputCastImageFilterType;
typedef clitk::SetBackgroundImageFilter<InternalImageType, InternalImageType, InternalImageType> SetBackgroundImageFilterType;