STYLE: Replace TInputImage::SizeValueType with SizeValueType

Replaced `typename TInputImage::SizeValueType` with `SizeValueType`.

In practice, `TInputImage::SizeValueType` is always just an alias of
`itk::SizeValueType` anyway.

Author: N-Dekker

Modules/Core/ImageFunction/include/itkBSplineDecompositionImageFilter.hxx

@@ -180,11 +180,11 @@ BSplineDecompositionImageFilter<TInputImage, TOutputImage>::SetInitialCausalCoef
   // See Unser, 1999, Box 2 for explanation
 
   // Yhis initialization corresponds to mirror boundaries
-  typename TInputImage::SizeValueType horizon = m_DataLength[m_IteratorDirection];
-  double                              zn = z;
+  SizeValueType horizon = m_DataLength[m_IteratorDirection];
+  double        zn = z;
   if (m_Tolerance > 0.0)
   {
-    horizon = (typename TInputImage::SizeValueType)std::ceil(std::log(m_Tolerance) / std::log(itk::Math::abs(z)));
+    horizon = (SizeValueType)std::ceil(std::log(m_Tolerance) / std::log(itk::Math::abs(z)));
   }
   if (horizon < m_DataLength[m_IteratorDirection])
   {

Modules/Filtering/ImageFilterBase/include/itkBoxImageFilter.h

@@ -70,7 +70,7 @@ class ITK_TEMPLATE_EXPORT BoxImageFilter : public ImageToImageFilter<TInputImage
   static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;
   /** n-dimensional Kernel radius. */
   using RadiusType = typename TInputImage::SizeType;
-  using RadiusValueType = typename TInputImage::SizeValueType;
+  using RadiusValueType = SizeValueType;
 
   virtual void
   SetRadius(const RadiusType & radius);

Modules/Filtering/ImageStatistics/include/itkAccumulateImageFilter.hxx

@@ -158,8 +158,8 @@ AccumulateImageFilter<TInputImage, TOutputImage>::GenerateData()
   typename TInputImage::SizeType  AccumulatedSize = inputImage->GetLargestPossibleRegion().GetSize();
   typename TInputImage::IndexType AccumulatedIndex = inputImage->GetLargestPossibleRegion().GetIndex();
 
-  const typename TInputImage::SizeValueType SizeAccumulateDimension = AccumulatedSize[m_AccumulateDimension];
-  const auto sizeAccumulateDimensionDouble = static_cast<double>(SizeAccumulateDimension);
+  const SizeValueType SizeAccumulateDimension = AccumulatedSize[m_AccumulateDimension];
+  const auto          sizeAccumulateDimensionDouble = static_cast<double>(SizeAccumulateDimension);
   const typename TInputImage::IndexValueType IndexAccumulateDimension = AccumulatedIndex[m_AccumulateDimension];
   for (unsigned int i = 0; i < InputImageDimension; ++i)
   {