diff --git a/src/Core/Common/ApplyAFilterOnlyToASpecifiedRegionOfAnImage/Code.cxx b/src/Core/Common/ApplyAFilterOnlyToASpecifiedRegionOfAnImage/Code.cxx
index b1f2c9dd2..fb5df521f 100644
--- a/src/Core/Common/ApplyAFilterOnlyToASpecifiedRegionOfAnImage/Code.cxx
+++ b/src/Core/Common/ApplyAFilterOnlyToASpecifiedRegionOfAnImage/Code.cxx
@@ -31,8 +31,7 @@ main()
   ImageType::SizeType smallSize;
   smallSize.Fill(10);
 
-  ImageType::IndexType index;
-  index.Fill(0);
+  ImageType::IndexType index{};
 
   ImageType::RegionType region(index, smallSize);
 
diff --git a/src/Core/Common/ConvertArrayToImage/Code.cxx b/src/Core/Common/ConvertArrayToImage/Code.cxx
index edd988028..ec3f31313 100644
--- a/src/Core/Common/ConvertArrayToImage/Code.cxx
+++ b/src/Core/Common/ConvertArrayToImage/Code.cxx
@@ -35,8 +35,7 @@ main()
   size[1] = 200; // size along Y
   size[2] = 200; // size along Z
 
-  ImportFilterType::IndexType start;
-  start.Fill(0);
+  ImportFilterType::IndexType start{};
 
   ImportFilterType::RegionType region;
   region.SetIndex(start);
diff --git a/src/Core/Common/CreateAnotherInstanceOfAFilter/Code.cxx b/src/Core/Common/CreateAnotherInstanceOfAFilter/Code.cxx
index 4f4eb034e..731a3d03a 100644
--- a/src/Core/Common/CreateAnotherInstanceOfAFilter/Code.cxx
+++ b/src/Core/Common/CreateAnotherInstanceOfAFilter/Code.cxx
@@ -24,8 +24,7 @@ void
 CreateImage(typename TImage::Pointer image)
 {
   using ImageType = TImage;
-  typename ImageType::IndexType start;
-  start.Fill(0);
+  typename ImageType::IndexType start{};
 
   typename ImageType::SizeType size;
   size.Fill(2);
@@ -55,8 +54,7 @@ main()
   filter2->SetInput(image);
   filter2->Update();
 
-  itk::Index<Dimension> index;
-  index.Fill(0);
+  itk::Index<Dimension> index{};
 
   std::cout << filter2->GetOutput()->GetPixel(index) << std::endl;
 
diff --git a/src/Core/Common/CreateVectorImage/Code.cxx b/src/Core/Common/CreateVectorImage/Code.cxx
index c87b4b33e..c15d32b3e 100644
--- a/src/Core/Common/CreateVectorImage/Code.cxx
+++ b/src/Core/Common/CreateVectorImage/Code.cxx
@@ -23,8 +23,7 @@ main()
   // Create an image
   using ImageType = itk::VectorImage<float, 2>;
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Core/Common/CropImageBySpecifyingRegion/Code.cxx b/src/Core/Common/CropImageBySpecifyingRegion/Code.cxx
index da8854653..897c573b9 100644
--- a/src/Core/Common/CropImageBySpecifyingRegion/Code.cxx
+++ b/src/Core/Common/CropImageBySpecifyingRegion/Code.cxx
@@ -25,8 +25,7 @@ main()
 {
   using ImageType = itk::Image<unsigned char, 2>;
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Core/Common/ImageRegionOverlap/Code.cxx b/src/Core/Common/ImageRegionOverlap/Code.cxx
index 412cc49d3..4adf3cff6 100644
--- a/src/Core/Common/ImageRegionOverlap/Code.cxx
+++ b/src/Core/Common/ImageRegionOverlap/Code.cxx
@@ -88,19 +88,15 @@ main(int argc, char * argv[])
   regionC.Crop(regionB);
   regionC.PadByRadius(10);
 
-  RGBPixelType pix_black;
-  pix_black.Fill(0);
+  RGBPixelType pix_black{};
 
-  RGBPixelType pix_red;
-  pix_red.Fill(0);
+  RGBPixelType pix_red{};
   pix_red[0] = 255;
 
-  RGBPixelType pix_green;
-  pix_green.Fill(0);
+  RGBPixelType pix_green{};
   pix_green[1] = 255;
 
-  RGBPixelType pix_blue;
-  pix_blue.Fill(0);
+  RGBPixelType pix_blue{};
   pix_blue[2] = 255;
 
   // A black canvas
diff --git a/src/Core/Common/ImportPixelBufferIntoAnImage/Code.cxx b/src/Core/Common/ImportPixelBufferIntoAnImage/Code.cxx
index 281886c6d..12daf39a1 100644
--- a/src/Core/Common/ImportPixelBufferIntoAnImage/Code.cxx
+++ b/src/Core/Common/ImportPixelBufferIntoAnImage/Code.cxx
@@ -48,8 +48,7 @@ main(int argc, char * argv[])
   size[0] = 200; // size along X
   size[1] = 200; // size along Y
 
-  ImportFilterType::IndexType start;
-  start.Fill(0);
+  ImportFilterType::IndexType start{};
 
   ImportFilterType::RegionType region;
   region.SetIndex(start);
diff --git a/src/Core/Common/IsPixelInsideRegion/Code.cxx b/src/Core/Common/IsPixelInsideRegion/Code.cxx
index b757f665f..2865f62b4 100644
--- a/src/Core/Common/IsPixelInsideRegion/Code.cxx
+++ b/src/Core/Common/IsPixelInsideRegion/Code.cxx
@@ -32,8 +32,7 @@ main()
   SizeType size;
   size.Fill(3);
 
-  IndexType start;
-  start.Fill(0);
+  IndexType start{};
 
   RegionType region(start, size);
 
diff --git a/src/Core/Common/IterateImageStartingAtSeed/Code.cxx b/src/Core/Common/IterateImageStartingAtSeed/Code.cxx
index f18e07396..c342cf741 100644
--- a/src/Core/Common/IterateImageStartingAtSeed/Code.cxx
+++ b/src/Core/Common/IterateImageStartingAtSeed/Code.cxx
@@ -59,8 +59,7 @@ main(int /*argc*/, char * /*argv*/[])
 void
 CreateImage(ImageType::Pointer image)
 {
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Core/Common/IterateLineThroughImage/Code.cxx b/src/Core/Common/IterateLineThroughImage/Code.cxx
index 6ad592b55..4ec3ece3d 100644
--- a/src/Core/Common/IterateLineThroughImage/Code.cxx
+++ b/src/Core/Common/IterateLineThroughImage/Code.cxx
@@ -91,8 +91,7 @@ CreateImage(ImageType::Pointer image)
   ImageType::SizeType regionSize;
   regionSize.Fill(100);
 
-  ImageType::IndexType regionIndex;
-  regionIndex.Fill(0);
+  ImageType::IndexType regionIndex{};
 
   ImageType::RegionType region;
   region.SetSize(regionSize);
diff --git a/src/Core/Common/IterateLineThroughImageWithoutWriteAccess/Code.cxx b/src/Core/Common/IterateLineThroughImageWithoutWriteAccess/Code.cxx
index cb43785b1..918c8ac77 100644
--- a/src/Core/Common/IterateLineThroughImageWithoutWriteAccess/Code.cxx
+++ b/src/Core/Common/IterateLineThroughImageWithoutWriteAccess/Code.cxx
@@ -53,8 +53,7 @@ CreateImage(ImageType::Pointer image)
   ImageType::SizeType regionSize;
   regionSize.Fill(3);
 
-  ImageType::IndexType regionIndex;
-  regionIndex.Fill(0);
+  ImageType::IndexType regionIndex{};
 
   ImageType::RegionType region;
   region.SetSize(regionSize);
diff --git a/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIterator/Code.cxx b/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIterator/Code.cxx
index cca171ab9..59d3c0352 100644
--- a/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIterator/Code.cxx
+++ b/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIterator/Code.cxx
@@ -38,8 +38,7 @@ main()
 
   auto image = ImageType::New();
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIteratorManual/Code.cxx b/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIteratorManual/Code.cxx
index 8778f304d..1f21f424f 100644
--- a/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIteratorManual/Code.cxx
+++ b/src/Core/Common/IterateOverARegionWithAShapedNeighborhoodIteratorManual/Code.cxx
@@ -85,8 +85,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Core/Common/IterateOverSpecificRegion/Code.cxx b/src/Core/Common/IterateOverSpecificRegion/Code.cxx
index 3d01df333..6ebeacfb2 100644
--- a/src/Core/Common/IterateOverSpecificRegion/Code.cxx
+++ b/src/Core/Common/IterateOverSpecificRegion/Code.cxx
@@ -32,8 +32,7 @@ main()
   ImageType::SizeType exclusionRegionSize;
   exclusionRegionSize.Fill(2);
 
-  ImageType::IndexType exclusionRegionIndex;
-  exclusionRegionIndex.Fill(0);
+  ImageType::IndexType exclusionRegionIndex{};
 
   ImageType::RegionType exclusionRegion(exclusionRegionIndex, exclusionRegionSize);
 
@@ -62,8 +61,7 @@ CreateImage(ImageType::Pointer image)
   ImageType::SizeType regionSize;
   regionSize.Fill(3);
 
-  ImageType::IndexType regionIndex;
-  regionIndex.Fill(0);
+  ImageType::IndexType regionIndex{};
 
   ImageType::RegionType region(regionIndex, regionSize);
 
diff --git a/src/Core/Common/NeighborhoodIteratorOnVectorImage/Code.cxx b/src/Core/Common/NeighborhoodIteratorOnVectorImage/Code.cxx
index 004213c39..57dcd28d2 100644
--- a/src/Core/Common/NeighborhoodIteratorOnVectorImage/Code.cxx
+++ b/src/Core/Common/NeighborhoodIteratorOnVectorImage/Code.cxx
@@ -26,8 +26,7 @@ main()
   // Create an image
   auto image = VectorImageType::New();
 
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(10);
diff --git a/src/Core/Common/RandomSelectPixelFromRegionWithoutReplacee/Code.cxx b/src/Core/Common/RandomSelectPixelFromRegionWithoutReplacee/Code.cxx
index e6f1fcb69..b25fc59b7 100644
--- a/src/Core/Common/RandomSelectPixelFromRegionWithoutReplacee/Code.cxx
+++ b/src/Core/Common/RandomSelectPixelFromRegionWithoutReplacee/Code.cxx
@@ -27,8 +27,7 @@ main()
   ImageType::SizeType regionSize;
   regionSize.Fill(3);
 
-  ImageType::IndexType regionIndex;
-  regionIndex.Fill(0);
+  ImageType::IndexType regionIndex{};
 
   ImageType::RegionType region(regionIndex, regionSize);
 
diff --git a/src/Core/Common/SetPixelValueInOneImage/Code.cxx b/src/Core/Common/SetPixelValueInOneImage/Code.cxx
index f49228798..2c29b6f71 100644
--- a/src/Core/Common/SetPixelValueInOneImage/Code.cxx
+++ b/src/Core/Common/SetPixelValueInOneImage/Code.cxx
@@ -36,8 +36,7 @@ main(int argc, char * argv[])
 
   ImageType::RegionType region;
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   region.SetIndex(start);
 
diff --git a/src/Core/Common/StoreNonPixelDataInImage/Code.cxx b/src/Core/Common/StoreNonPixelDataInImage/Code.cxx
index e4246048c..92c1f8f2b 100644
--- a/src/Core/Common/StoreNonPixelDataInImage/Code.cxx
+++ b/src/Core/Common/StoreNonPixelDataInImage/Code.cxx
@@ -76,8 +76,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Core/Common/WatchAFilter/Code.cxx b/src/Core/Common/WatchAFilter/Code.cxx
index 88fa7c364..164415102 100644
--- a/src/Core/Common/WatchAFilter/Code.cxx
+++ b/src/Core/Common/WatchAFilter/Code.cxx
@@ -29,8 +29,7 @@ CreateImage(typename TImage::Pointer image)
 
   // Create an image with 2 connected components
   typename ImageType::RegionType region;
-  typename ImageType::IndexType  start;
-  start.Fill(0);
+  typename ImageType::IndexType  start{};
 
   typename ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Core/ImageAdaptors/AddConstantToPixelsWithoutDuplicatingImage/Code.cxx b/src/Core/ImageAdaptors/AddConstantToPixelsWithoutDuplicatingImage/Code.cxx
index db924cabb..ba0f1d945 100644
--- a/src/Core/ImageAdaptors/AddConstantToPixelsWithoutDuplicatingImage/Code.cxx
+++ b/src/Core/ImageAdaptors/AddConstantToPixelsWithoutDuplicatingImage/Code.cxx
@@ -62,8 +62,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Core/ImageAdaptors/ExtractChannelOfImageWithMultipleComponents/Code.cxx b/src/Core/ImageAdaptors/ExtractChannelOfImageWithMultipleComponents/Code.cxx
index 65bdd3334..43c7397c5 100644
--- a/src/Core/ImageAdaptors/ExtractChannelOfImageWithMultipleComponents/Code.cxx
+++ b/src/Core/ImageAdaptors/ExtractChannelOfImageWithMultipleComponents/Code.cxx
@@ -30,8 +30,7 @@ main()
   auto image = VectorImageType::New();
   CreateImage(image);
 
-  itk::Index<2> index;
-  index.Fill(0);
+  itk::Index<2> index{};
 
   std::cout << image->GetPixel(index) << std::endl;
 
@@ -50,8 +49,7 @@ main()
 void
 CreateImage(VectorImageType::Pointer image)
 {
-  VectorImageType::IndexType start;
-  start.Fill(0);
+  VectorImageType::IndexType start{};
 
   VectorImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Core/ImageAdaptors/PresentImageAfterOperation/Code.cxx b/src/Core/ImageAdaptors/PresentImageAfterOperation/Code.cxx
index 050c0a65e..70f66555d 100644
--- a/src/Core/ImageAdaptors/PresentImageAfterOperation/Code.cxx
+++ b/src/Core/ImageAdaptors/PresentImageAfterOperation/Code.cxx
@@ -57,8 +57,7 @@ main()
   auto image = VectorImageType::New();
   CreateImage(image);
 
-  itk::Index<2> index;
-  index.Fill(0);
+  itk::Index<2> index{};
 
   std::cout << image->GetPixel(index) << std::endl;
 
@@ -79,8 +78,7 @@ main()
 void
 CreateImage(VectorImageType::Pointer image)
 {
-  VectorImageType::IndexType start;
-  start.Fill(0);
+  VectorImageType::IndexType start{};
 
   VectorImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Core/ImageAdaptors/ProcessNthComponentOfVectorImage/Code.cxx b/src/Core/ImageAdaptors/ProcessNthComponentOfVectorImage/Code.cxx
index 2d2890111..ef27646a4 100644
--- a/src/Core/ImageAdaptors/ProcessNthComponentOfVectorImage/Code.cxx
+++ b/src/Core/ImageAdaptors/ProcessNthComponentOfVectorImage/Code.cxx
@@ -49,8 +49,7 @@ main()
 void
 CreateImage(VectorImageType::Pointer image)
 {
-  VectorImageType::IndexType start;
-  start.Fill(0);
+  VectorImageType::IndexType start{};
 
   VectorImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Core/ImageAdaptors/ViewComponentVectorImageAsScaleImage/Code.cxx b/src/Core/ImageAdaptors/ViewComponentVectorImageAsScaleImage/Code.cxx
index da2aeb99c..559b87b4b 100644
--- a/src/Core/ImageAdaptors/ViewComponentVectorImageAsScaleImage/Code.cxx
+++ b/src/Core/ImageAdaptors/ViewComponentVectorImageAsScaleImage/Code.cxx
@@ -49,8 +49,7 @@ main()
 void
 CreateImage(VectorImageType::Pointer image)
 {
-  VectorImageType::IndexType start;
-  start.Fill(0);
+  VectorImageType::IndexType start{};
 
   VectorImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Core/ImageFunction/ComputeMedianOfImageAtPixel/Code.cxx b/src/Core/ImageFunction/ComputeMedianOfImageAtPixel/Code.cxx
index 45e599849..e37b0e0e1 100644
--- a/src/Core/ImageFunction/ComputeMedianOfImageAtPixel/Code.cxx
+++ b/src/Core/ImageFunction/ComputeMedianOfImageAtPixel/Code.cxx
@@ -45,8 +45,7 @@ main()
 void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx b/src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx
index b7454e1b8..184c180a2 100644
--- a/src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx
+++ b/src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx
@@ -74,8 +74,7 @@ void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image with 2 connected components
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Core/Transform/TranslateAVectorImage/Code.cxx b/src/Core/Transform/TranslateAVectorImage/Code.cxx
index 63f42e421..6e540150f 100644
--- a/src/Core/Transform/TranslateAVectorImage/Code.cxx
+++ b/src/Core/Transform/TranslateAVectorImage/Code.cxx
@@ -29,8 +29,7 @@ main()
   using VectorImageType = itk::Image<VectorType, 2>;
 
   auto          image = VectorImageType::New();
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(10);
diff --git a/src/Developer/ImageFilterMultipleOutputsDifferentType.hxx b/src/Developer/ImageFilterMultipleOutputsDifferentType.hxx
index 77125d2e2..b40ff0430 100644
--- a/src/Developer/ImageFilterMultipleOutputsDifferentType.hxx
+++ b/src/Developer/ImageFilterMultipleOutputsDifferentType.hxx
@@ -24,8 +24,7 @@ template <typename TInputImage, typename TOutputImage1, typename TOutputImage2>
 void
 ImageFilterMultipleOutputsDifferentType<TInputImage, TOutputImage1, TOutputImage2>::GenerateData()
 {
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(20);
diff --git a/src/Filtering/BinaryMathematicalMorphology/ThinImage/Code.cxx b/src/Filtering/BinaryMathematicalMorphology/ThinImage/Code.cxx
index 3bf519c2e..2a731b977 100644
--- a/src/Filtering/BinaryMathematicalMorphology/ThinImage/Code.cxx
+++ b/src/Filtering/BinaryMathematicalMorphology/ThinImage/Code.cxx
@@ -62,8 +62,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create an image
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/Convolution/ConvolveImageWithKernel/Code.cxx b/src/Filtering/Convolution/ConvolveImageWithKernel/Code.cxx
index ecf5b384c..0fc0ab299 100644
--- a/src/Filtering/Convolution/ConvolveImageWithKernel/Code.cxx
+++ b/src/Filtering/Convolution/ConvolveImageWithKernel/Code.cxx
@@ -77,8 +77,7 @@ main(int argc, char * argv[])
 void
 CreateKernel(ImageType::Pointer kernel, unsigned int width)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(width);
diff --git a/src/Filtering/Convolution/NormalizedCorrelationOfMaskedImage/Code.cxx b/src/Filtering/Convolution/NormalizedCorrelationOfMaskedImage/Code.cxx
index 217cc90d3..23109453d 100644
--- a/src/Filtering/Convolution/NormalizedCorrelationOfMaskedImage/Code.cxx
+++ b/src/Filtering/Convolution/NormalizedCorrelationOfMaskedImage/Code.cxx
@@ -126,8 +126,7 @@ main()
 void
 CreateMask(MaskType * const mask)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
@@ -161,8 +160,7 @@ CreateMask(MaskType * const mask)
 void
 CreateImage(ImageType * const image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
@@ -177,8 +175,7 @@ CreateImage(ImageType * const image)
 void
 CreateImageOfSquare(ImageType * const image, const itk::Index<2> & cornerOfSquare)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
diff --git a/src/Filtering/Convolution/NormalizedCorrelationUsingFFT/Code.cxx b/src/Filtering/Convolution/NormalizedCorrelationUsingFFT/Code.cxx
index af4f1fd39..be82e3268 100644
--- a/src/Filtering/Convolution/NormalizedCorrelationUsingFFT/Code.cxx
+++ b/src/Filtering/Convolution/NormalizedCorrelationUsingFFT/Code.cxx
@@ -101,8 +101,7 @@ main()
 void
 CreateImage(ImageType::Pointer image, const itk::Index<2> & cornerOfSquare)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
diff --git a/src/Filtering/Convolution/NormalizedCorrelationUsingFFTWithMaskImages/Code.cxx b/src/Filtering/Convolution/NormalizedCorrelationUsingFFTWithMaskImages/Code.cxx
index 0244efb03..1b3646eaf 100644
--- a/src/Filtering/Convolution/NormalizedCorrelationUsingFFTWithMaskImages/Code.cxx
+++ b/src/Filtering/Convolution/NormalizedCorrelationUsingFFTWithMaskImages/Code.cxx
@@ -108,8 +108,7 @@ main()
 void
 CreateImage(ImageType::Pointer image, const itk::Index<2> & cornerOfSquare)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
@@ -140,8 +139,7 @@ CreateImage(ImageType::Pointer image, const itk::Index<2> & cornerOfSquare)
 void
 CreateMask(MaskType * const mask)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(51);
diff --git a/src/Filtering/DistanceMap/ApproxDistanceMapOfBinary/Code.cxx b/src/Filtering/DistanceMap/ApproxDistanceMapOfBinary/Code.cxx
index 1fd373d7c..a88542946 100644
--- a/src/Filtering/DistanceMap/ApproxDistanceMapOfBinary/Code.cxx
+++ b/src/Filtering/DistanceMap/ApproxDistanceMapOfBinary/Code.cxx
@@ -73,8 +73,7 @@ void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/DistanceMap/MaurerDistanceMapOfBinary/Code.cxx b/src/Filtering/DistanceMap/MaurerDistanceMapOfBinary/Code.cxx
index 4af123873..3a947ea95 100644
--- a/src/Filtering/DistanceMap/MaurerDistanceMapOfBinary/Code.cxx
+++ b/src/Filtering/DistanceMap/MaurerDistanceMapOfBinary/Code.cxx
@@ -71,8 +71,7 @@ void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/DistanceMap/SignedDistanceMapOfBinary/Code.cxx b/src/Filtering/DistanceMap/SignedDistanceMapOfBinary/Code.cxx
index f6bb64483..a5c2ad4db 100644
--- a/src/Filtering/DistanceMap/SignedDistanceMapOfBinary/Code.cxx
+++ b/src/Filtering/DistanceMap/SignedDistanceMapOfBinary/Code.cxx
@@ -71,8 +71,7 @@ void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/FastMarching/CreateDistanceMapFromSeeds/Code.cxx b/src/Filtering/FastMarching/CreateDistanceMapFromSeeds/Code.cxx
index 16bb95151..5d6c9b9c0 100644
--- a/src/Filtering/FastMarching/CreateDistanceMapFromSeeds/Code.cxx
+++ b/src/Filtering/FastMarching/CreateDistanceMapFromSeeds/Code.cxx
@@ -72,8 +72,7 @@ main(int argc, char * argv[])
 
   FloatImageType::OffsetType offset0 = { { 28, 35 } };
 
-  FloatImageType::IndexType index;
-  index.Fill(0);
+  FloatImageType::IndexType index{};
   index += offset0;
 
   AliveImage->SetPixel(index, 1.0);
diff --git a/src/Filtering/ImageCompare/AbsValueOfTwoImages/Code.cxx b/src/Filtering/ImageCompare/AbsValueOfTwoImages/Code.cxx
index a94159a6c..01cc191dd 100644
--- a/src/Filtering/ImageCompare/AbsValueOfTwoImages/Code.cxx
+++ b/src/Filtering/ImageCompare/AbsValueOfTwoImages/Code.cxx
@@ -51,8 +51,7 @@ main()
 void
 CreateImage1(UnsignedCharImageType::Pointer image)
 {
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(10);
@@ -79,8 +78,7 @@ void
 CreateImage2(UnsignedCharImageType::Pointer image)
 {
   // Create an image with 2 connected components
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Filtering/ImageCompare/CombineTwoImagesWithCheckerBoardPattern/Code.cxx b/src/Filtering/ImageCompare/CombineTwoImagesWithCheckerBoardPattern/Code.cxx
index 8b27a8df1..14eb76d66 100644
--- a/src/Filtering/ImageCompare/CombineTwoImagesWithCheckerBoardPattern/Code.cxx
+++ b/src/Filtering/ImageCompare/CombineTwoImagesWithCheckerBoardPattern/Code.cxx
@@ -35,8 +35,7 @@ main(int argc, char * argv[])
   using PixelType = unsigned char;
   using ImageType = itk::Image<PixelType, Dimension>;
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageCompare/SquaredDifferenceOfTwoImages/Code.cxx b/src/Filtering/ImageCompare/SquaredDifferenceOfTwoImages/Code.cxx
index e31a4512c..e7055b51c 100644
--- a/src/Filtering/ImageCompare/SquaredDifferenceOfTwoImages/Code.cxx
+++ b/src/Filtering/ImageCompare/SquaredDifferenceOfTwoImages/Code.cxx
@@ -50,8 +50,7 @@ main()
 void
 CreateImage1(UnsignedCharImageType::Pointer image)
 {
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(10);
@@ -78,8 +77,7 @@ void
 CreateImage2(UnsignedCharImageType::Pointer image)
 {
   // Create an image with 2 connected components
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Filtering/ImageCompose/ComposeVectorFromThreeScalarImages/Code.cxx b/src/Filtering/ImageCompose/ComposeVectorFromThreeScalarImages/Code.cxx
index 8822da886..b3084a89c 100644
--- a/src/Filtering/ImageCompose/ComposeVectorFromThreeScalarImages/Code.cxx
+++ b/src/Filtering/ImageCompose/ComposeVectorFromThreeScalarImages/Code.cxx
@@ -39,8 +39,7 @@ main()
   composeFilter->SetInput3(image);
   composeFilter->Update();
 
-  itk::Index<2> index;
-  index.Fill(0);
+  itk::Index<2> index{};
 
   std::cout << image->GetPixel(index) << std::endl;
 
@@ -52,8 +51,7 @@ main()
 void
 CreateImage(ScalarImageType::Pointer image)
 {
-  ScalarImageType::IndexType start;
-  start.Fill(0);
+  ScalarImageType::IndexType start{};
 
   ScalarImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Filtering/ImageCompose/CreateVectorImageFromScalarImages/Code.cxx b/src/Filtering/ImageCompose/CreateVectorImageFromScalarImages/Code.cxx
index 9d25241dc..503a13f59 100644
--- a/src/Filtering/ImageCompose/CreateVectorImageFromScalarImages/Code.cxx
+++ b/src/Filtering/ImageCompose/CreateVectorImageFromScalarImages/Code.cxx
@@ -55,8 +55,7 @@ main()
 void
 CreateImage(ScalarImageType::Pointer image)
 {
-  ScalarImageType::IndexType start;
-  start.Fill(0);
+  ScalarImageType::IndexType start{};
 
   ScalarImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageCompose/JoinImages/Code.cxx b/src/Filtering/ImageCompose/JoinImages/Code.cxx
index bf04800a7..2a1490d5e 100644
--- a/src/Filtering/ImageCompose/JoinImages/Code.cxx
+++ b/src/Filtering/ImageCompose/JoinImages/Code.cxx
@@ -55,8 +55,7 @@ void
 CreateImage(ImageType::Pointer image, unsigned char value)
 {
   // Create an image
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFeature/ApplyAFilterOnlyToASpecifiedImageRegion/Code.cxx b/src/Filtering/ImageFeature/ApplyAFilterOnlyToASpecifiedImageRegion/Code.cxx
index a555cb388..b97cd9c87 100644
--- a/src/Filtering/ImageFeature/ApplyAFilterOnlyToASpecifiedImageRegion/Code.cxx
+++ b/src/Filtering/ImageFeature/ApplyAFilterOnlyToASpecifiedImageRegion/Code.cxx
@@ -27,8 +27,7 @@ main()
   itk::Size<2> smallSize;
   smallSize.Fill(10);
 
-  itk::Index<2> index;
-  index.Fill(0);
+  itk::Index<2> index{};
 
   itk::ImageRegion<2> region(index, smallSize);
 
diff --git a/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx b/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx
index 2c45e1e7c..bdd667422 100644
--- a/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx
+++ b/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx
@@ -48,8 +48,7 @@ int main()
 void CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFeature/FindZeroCrossingsInSignedImage/Code.cxx b/src/Filtering/ImageFeature/FindZeroCrossingsInSignedImage/Code.cxx
index d1aa860d6..e3b3c924f 100644
--- a/src/Filtering/ImageFeature/FindZeroCrossingsInSignedImage/Code.cxx
+++ b/src/Filtering/ImageFeature/FindZeroCrossingsInSignedImage/Code.cxx
@@ -67,8 +67,7 @@ main(int argc, char * argv[])
 void
 CreateImage(ImageType::Pointer image)
 {
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixel/Code.cxx b/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixel/Code.cxx
index 34594a659..30bc47129 100644
--- a/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixel/Code.cxx
+++ b/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixel/Code.cxx
@@ -56,8 +56,7 @@ main()
 void
 CreateImage(FloatImageType::Pointer image)
 {
-  FloatImageType::IndexType start;
-  start.Fill(0);
+  FloatImageType::IndexType start{};
 
   FloatImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixelInNonZeroImage/Code.cxx b/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixelInNonZeroImage/Code.cxx
index 19641efa4..da502b288 100644
--- a/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixelInNonZeroImage/Code.cxx
+++ b/src/Filtering/ImageFilterBase/ApplyKernelToEveryPixelInNonZeroImage/Code.cxx
@@ -110,8 +110,7 @@ CreateHalfMask(UnsignedCharImageType::Pointer image, UnsignedCharImageType::Poin
 void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFilterBase/ComputeLocalNoise/Code.cxx b/src/Filtering/ImageFilterBase/ComputeLocalNoise/Code.cxx
index 7645411f3..09178d50e 100644
--- a/src/Filtering/ImageFilterBase/ComputeLocalNoise/Code.cxx
+++ b/src/Filtering/ImageFilterBase/ComputeLocalNoise/Code.cxx
@@ -45,8 +45,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create an image that is mostly constant but has some different kinds of objects.
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFilterBase/CustomOperationToCorrespondingPixelsInTwoImages/Code.cxx b/src/Filtering/ImageFilterBase/CustomOperationToCorrespondingPixelsInTwoImages/Code.cxx
index 77736a348..14a33df42 100644
--- a/src/Filtering/ImageFilterBase/CustomOperationToCorrespondingPixelsInTwoImages/Code.cxx
+++ b/src/Filtering/ImageFilterBase/CustomOperationToCorrespondingPixelsInTwoImages/Code.cxx
@@ -76,8 +76,7 @@ main()
   filter->SetInput2(image2);
   filter->Update();
 
-  itk::Index<2> pixelIndex;
-  pixelIndex.Fill(0);
+  itk::Index<2> pixelIndex{};
 
   ImageType::PixelType input1PixelValue = image1->GetPixel(pixelIndex);
   ImageType::PixelType input2PixelValue = image2->GetPixel(pixelIndex);
@@ -93,8 +92,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Filtering/ImageFilterBase/PredefinedOperationToCorrespondingPixelsInTwoImages/Code.cxx b/src/Filtering/ImageFilterBase/PredefinedOperationToCorrespondingPixelsInTwoImages/Code.cxx
index 054280998..996692544 100644
--- a/src/Filtering/ImageFilterBase/PredefinedOperationToCorrespondingPixelsInTwoImages/Code.cxx
+++ b/src/Filtering/ImageFilterBase/PredefinedOperationToCorrespondingPixelsInTwoImages/Code.cxx
@@ -42,8 +42,7 @@ main()
   filter->SetInput2(image2);
   filter->Update();
 
-  itk::Index<2> pixelIndex;
-  pixelIndex.Fill(0);
+  itk::Index<2> pixelIndex{};
 
   ImageType::PixelType input1PixelValue = image1->GetPixel(pixelIndex);
   ImageType::PixelType input2PixelValue = image2->GetPixel(pixelIndex);
@@ -59,8 +58,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(10);
diff --git a/src/Filtering/ImageFusion/ColorBoundariesOfRegions/Code.cxx b/src/Filtering/ImageFusion/ColorBoundariesOfRegions/Code.cxx
index 5ad2073a1..febedafdb 100644
--- a/src/Filtering/ImageFusion/ColorBoundariesOfRegions/Code.cxx
+++ b/src/Filtering/ImageFusion/ColorBoundariesOfRegions/Code.cxx
@@ -63,8 +63,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFusion/ColorLabeledRegions/Code.cxx b/src/Filtering/ImageFusion/ColorLabeledRegions/Code.cxx
index dc2fdbd49..ac6b75ac3 100644
--- a/src/Filtering/ImageFusion/ColorLabeledRegions/Code.cxx
+++ b/src/Filtering/ImageFusion/ColorLabeledRegions/Code.cxx
@@ -58,8 +58,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageFusion/OverlayLabelMapOnImage/Code.cxx b/src/Filtering/ImageFusion/OverlayLabelMapOnImage/Code.cxx
index 4fb7026de..64835d2eb 100644
--- a/src/Filtering/ImageFusion/OverlayLabelMapOnImage/Code.cxx
+++ b/src/Filtering/ImageFusion/OverlayLabelMapOnImage/Code.cxx
@@ -63,8 +63,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageGrid/FitSplineIntoPointSet/Code.cxx b/src/Filtering/ImageGrid/FitSplineIntoPointSet/Code.cxx
index 34d378f58..88e238526 100644
--- a/src/Filtering/ImageGrid/FitSplineIntoPointSet/Code.cxx
+++ b/src/Filtering/ImageGrid/FitSplineIntoPointSet/Code.cxx
@@ -95,8 +95,7 @@ main()
   OutputImageType::SizeType size;
   size.Fill(200);
 
-  OutputImageType::IndexType start;
-  start.Fill(0);
+  OutputImageType::IndexType start{};
 
   OutputImageType::RegionType region(start, size);
   outputImage->SetRegions(region);
diff --git a/src/Filtering/ImageGrid/ShrinkImage/Code.cxx b/src/Filtering/ImageGrid/ShrinkImage/Code.cxx
index e59862626..2338b707f 100644
--- a/src/Filtering/ImageGrid/ShrinkImage/Code.cxx
+++ b/src/Filtering/ImageGrid/ShrinkImage/Code.cxx
@@ -50,8 +50,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create an image with 2 connected components
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/AddConstantToEveryPixel/Code.cxx b/src/Filtering/ImageIntensity/AddConstantToEveryPixel/Code.cxx
index f0616eed9..d0d68156d 100644
--- a/src/Filtering/ImageIntensity/AddConstantToEveryPixel/Code.cxx
+++ b/src/Filtering/ImageIntensity/AddConstantToEveryPixel/Code.cxx
@@ -43,8 +43,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/BinaryANDTwoImages/Code.cxx b/src/Filtering/ImageIntensity/BinaryANDTwoImages/Code.cxx
index 2d9526d44..136325964 100644
--- a/src/Filtering/ImageIntensity/BinaryANDTwoImages/Code.cxx
+++ b/src/Filtering/ImageIntensity/BinaryANDTwoImages/Code.cxx
@@ -55,8 +55,7 @@ main()
 void
 CreateImage1(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -88,8 +87,7 @@ CreateImage1(ImageType::Pointer image)
 void
 CreateImage2(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/BinaryORTwoImages/Code.cxx b/src/Filtering/ImageIntensity/BinaryORTwoImages/Code.cxx
index 1cff052ab..e629b173d 100644
--- a/src/Filtering/ImageIntensity/BinaryORTwoImages/Code.cxx
+++ b/src/Filtering/ImageIntensity/BinaryORTwoImages/Code.cxx
@@ -54,8 +54,7 @@ main()
 void
 CreateImage1(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -87,8 +86,7 @@ CreateImage1(ImageType::Pointer image)
 void
 CreateImage2(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/BinaryXORTwoImages/Code.cxx b/src/Filtering/ImageIntensity/BinaryXORTwoImages/Code.cxx
index 27f680dd1..465d087d5 100644
--- a/src/Filtering/ImageIntensity/BinaryXORTwoImages/Code.cxx
+++ b/src/Filtering/ImageIntensity/BinaryXORTwoImages/Code.cxx
@@ -50,8 +50,7 @@ main()
 void
 CreateImage1(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -83,8 +82,7 @@ CreateImage1(ImageType::Pointer image)
 void
 CreateImage2(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMax/Code.cxx b/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMax/Code.cxx
index ba8eec185..645ffd62f 100644
--- a/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMax/Code.cxx
+++ b/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMax/Code.cxx
@@ -48,8 +48,7 @@ main()
 void
 CreateImage1(ImageType * image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -81,8 +80,7 @@ CreateImage1(ImageType * image)
 void
 CreateImage2(ImageType * image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMin/Code.cxx b/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMin/Code.cxx
index c84ca0d3e..69023d249 100644
--- a/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMin/Code.cxx
+++ b/src/Filtering/ImageIntensity/CompareTwoImagesAndSetOutputPixelToMin/Code.cxx
@@ -48,8 +48,7 @@ main()
 void
 CreateImage1(ImageType * image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -81,8 +80,7 @@ CreateImage1(ImageType * image)
 void
 CreateImage2(ImageType * image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/ComputeEdgePotential/Code.cxx b/src/Filtering/ImageIntensity/ComputeEdgePotential/Code.cxx
index 35c874012..9ef8a1e08 100644
--- a/src/Filtering/ImageIntensity/ComputeEdgePotential/Code.cxx
+++ b/src/Filtering/ImageIntensity/ComputeEdgePotential/Code.cxx
@@ -69,8 +69,7 @@ CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create a black image with 2 white regions
 
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(200);
diff --git a/src/Filtering/ImageIntensity/ExtractComponentOfVectorImage/Code.cxx b/src/Filtering/ImageIntensity/ExtractComponentOfVectorImage/Code.cxx
index ed01ba676..93693620a 100644
--- a/src/Filtering/ImageIntensity/ExtractComponentOfVectorImage/Code.cxx
+++ b/src/Filtering/ImageIntensity/ExtractComponentOfVectorImage/Code.cxx
@@ -48,8 +48,7 @@ main()
 void
 CreateImage(VectorImageType::Pointer image)
 {
-  VectorImageType::IndexType start;
-  start.Fill(0);
+  VectorImageType::IndexType start{};
 
   VectorImageType::SizeType size;
   size.Fill(2);
diff --git a/src/Filtering/ImageIntensity/IntensityWindowing/Code.cxx b/src/Filtering/ImageIntensity/IntensityWindowing/Code.cxx
index f4634a751..39bc2ac2b 100644
--- a/src/Filtering/ImageIntensity/IntensityWindowing/Code.cxx
+++ b/src/Filtering/ImageIntensity/IntensityWindowing/Code.cxx
@@ -49,8 +49,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/InverseOfMaskToImage/Code.cxx b/src/Filtering/ImageIntensity/InverseOfMaskToImage/Code.cxx
index 2e9565b89..67dd9da64 100644
--- a/src/Filtering/ImageIntensity/InverseOfMaskToImage/Code.cxx
+++ b/src/Filtering/ImageIntensity/InverseOfMaskToImage/Code.cxx
@@ -78,8 +78,7 @@ CreateHalfMask(ImageType::Pointer image, ImageType::Pointer mask)
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/ScalePixelSumToConstant/Code.cxx b/src/Filtering/ImageIntensity/ScalePixelSumToConstant/Code.cxx
index 12f608fec..81ab7acaa 100644
--- a/src/Filtering/ImageIntensity/ScalePixelSumToConstant/Code.cxx
+++ b/src/Filtering/ImageIntensity/ScalePixelSumToConstant/Code.cxx
@@ -57,8 +57,7 @@ CreateImage(ImageType::Pointer image)
 {
   // Create an image full of 1's
 
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(3);
diff --git a/src/Filtering/ImageIntensity/SquareEveryPixel/Code.cxx b/src/Filtering/ImageIntensity/SquareEveryPixel/Code.cxx
index a9e9a6a50..d50ee6a33 100644
--- a/src/Filtering/ImageIntensity/SquareEveryPixel/Code.cxx
+++ b/src/Filtering/ImageIntensity/SquareEveryPixel/Code.cxx
@@ -42,8 +42,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageIntensity/SubtractConstantFromEveryPixel/Code.cxx b/src/Filtering/ImageIntensity/SubtractConstantFromEveryPixel/Code.cxx
index d7b432281..3a7791de5 100644
--- a/src/Filtering/ImageIntensity/SubtractConstantFromEveryPixel/Code.cxx
+++ b/src/Filtering/ImageIntensity/SubtractConstantFromEveryPixel/Code.cxx
@@ -43,8 +43,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/ImageLabel/ExtractInnerAndOuterBoundariesOfBlobsInBinaryImage/Code.cxx b/src/Filtering/ImageLabel/ExtractInnerAndOuterBoundariesOfBlobsInBinaryImage/Code.cxx
index 65564184b..c4936569b 100644
--- a/src/Filtering/ImageLabel/ExtractInnerAndOuterBoundariesOfBlobsInBinaryImage/Code.cxx
+++ b/src/Filtering/ImageLabel/ExtractInnerAndOuterBoundariesOfBlobsInBinaryImage/Code.cxx
@@ -71,8 +71,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/ImageStatistics/StatisticalPropertiesOfRegions/Code.cxx b/src/Filtering/ImageStatistics/StatisticalPropertiesOfRegions/Code.cxx
index cd8c80ac0..6c6132f5c 100644
--- a/src/Filtering/ImageStatistics/StatisticalPropertiesOfRegions/Code.cxx
+++ b/src/Filtering/ImageStatistics/StatisticalPropertiesOfRegions/Code.cxx
@@ -83,8 +83,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/LabelMap/ConvertLabelMapToImage/Code.cxx b/src/Filtering/LabelMap/ConvertLabelMapToImage/Code.cxx
index d863289fa..925b58135 100644
--- a/src/Filtering/LabelMap/ConvertLabelMapToImage/Code.cxx
+++ b/src/Filtering/LabelMap/ConvertLabelMapToImage/Code.cxx
@@ -49,8 +49,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/LabelMap/InvertImageUsingBinaryNot/Code.cxx b/src/Filtering/LabelMap/InvertImageUsingBinaryNot/Code.cxx
index 88fdfbb8a..39eae1144 100644
--- a/src/Filtering/LabelMap/InvertImageUsingBinaryNot/Code.cxx
+++ b/src/Filtering/LabelMap/InvertImageUsingBinaryNot/Code.cxx
@@ -49,8 +49,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Filtering/LabelMap/KeepRegionsAboveLevel/Code.cxx b/src/Filtering/LabelMap/KeepRegionsAboveLevel/Code.cxx
index a3668dcc5..ee4434518 100644
--- a/src/Filtering/LabelMap/KeepRegionsAboveLevel/Code.cxx
+++ b/src/Filtering/LabelMap/KeepRegionsAboveLevel/Code.cxx
@@ -75,8 +75,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with three white squares
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(200);
diff --git a/src/Filtering/LabelMap/KeepRegionsThatMeetSpecific/Code.cxx b/src/Filtering/LabelMap/KeepRegionsThatMeetSpecific/Code.cxx
index c20ff4db2..4cdc92fd3 100644
--- a/src/Filtering/LabelMap/KeepRegionsThatMeetSpecific/Code.cxx
+++ b/src/Filtering/LabelMap/KeepRegionsThatMeetSpecific/Code.cxx
@@ -77,8 +77,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with three white squares
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(200);
diff --git a/src/Filtering/LabelMap/LabelBinaryRegionsAndGetProperties/Code.cxx b/src/Filtering/LabelMap/LabelBinaryRegionsAndGetProperties/Code.cxx
index 99b6b768e..cd1a730f8 100644
--- a/src/Filtering/LabelMap/LabelBinaryRegionsAndGetProperties/Code.cxx
+++ b/src/Filtering/LabelMap/LabelBinaryRegionsAndGetProperties/Code.cxx
@@ -60,8 +60,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/LabelMap/LabelBinaryRegionsInImage/Code.cxx b/src/Filtering/LabelMap/LabelBinaryRegionsInImage/Code.cxx
index eb671bc21..a16b617e1 100644
--- a/src/Filtering/LabelMap/LabelBinaryRegionsInImage/Code.cxx
+++ b/src/Filtering/LabelMap/LabelBinaryRegionsInImage/Code.cxx
@@ -60,8 +60,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/LabelMap/RemoveLabelsFromLabelMap/Code.cxx b/src/Filtering/LabelMap/RemoveLabelsFromLabelMap/Code.cxx
index bda650db5..ee0748520 100644
--- a/src/Filtering/LabelMap/RemoveLabelsFromLabelMap/Code.cxx
+++ b/src/Filtering/LabelMap/RemoveLabelsFromLabelMap/Code.cxx
@@ -77,8 +77,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Filtering/MathematicalMorphology/RegionalMinimal/Code.cxx b/src/Filtering/MathematicalMorphology/RegionalMinimal/Code.cxx
index 2eafd2290..256ba3540 100644
--- a/src/Filtering/MathematicalMorphology/RegionalMinimal/Code.cxx
+++ b/src/Filtering/MathematicalMorphology/RegionalMinimal/Code.cxx
@@ -45,8 +45,7 @@ main()
 void
 CreateImage(ImageType::Pointer image)
 {
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size[0] = 200;
diff --git a/src/Filtering/Path/ExtractContoursFromImage/Code.cxx b/src/Filtering/Path/ExtractContoursFromImage/Code.cxx
index 77addb83c..5ac88b0fe 100644
--- a/src/Filtering/Path/ExtractContoursFromImage/Code.cxx
+++ b/src/Filtering/Path/ExtractContoursFromImage/Code.cxx
@@ -70,8 +70,7 @@ void
 CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Filtering/Thresholding/SeparateGroundUsingOtsu/Code.cxx b/src/Filtering/Thresholding/SeparateGroundUsingOtsu/Code.cxx
index 654f00d10..f10c0948d 100644
--- a/src/Filtering/Thresholding/SeparateGroundUsingOtsu/Code.cxx
+++ b/src/Filtering/Thresholding/SeparateGroundUsingOtsu/Code.cxx
@@ -75,8 +75,7 @@ void
 CreateImage(ImageType::Pointer image)
 {
   // Create an image
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/ImageCompareCommand.cxx b/src/ImageCompareCommand.cxx
index 5ba08a063..6c7429e9b 100644
--- a/src/ImageCompareCommand.cxx
+++ b/src/ImageCompareCommand.cxx
@@ -321,10 +321,8 @@ RegressionTestImage(const char * testImageFilename,
     using WriterType = itk::ImageFileWriter<DiffOutputType>;
     using RegionType = itk::ImageRegion<ITK_TEST_DIMENSION_MAX>;
 
-    OutputType::IndexType index;
-    index.Fill(0);
-    OutputType::SizeType size;
-    size.Fill(0);
+    OutputType::IndexType index{};
+    OutputType::SizeType  size{};
 
     auto rescale = RescaleType::New();
 
diff --git a/src/Nonunit/Review/GeometricPropertiesOfRegion/Code.cxx b/src/Nonunit/Review/GeometricPropertiesOfRegion/Code.cxx
index b72e0a181..eab5315f2 100644
--- a/src/Nonunit/Review/GeometricPropertiesOfRegion/Code.cxx
+++ b/src/Nonunit/Review/GeometricPropertiesOfRegion/Code.cxx
@@ -144,8 +144,7 @@ void
 CreateIntensityImage(ImageType::Pointer image)
 {
   // Create a random image.
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
@@ -172,8 +171,7 @@ void
 CreateLabelImage(ImageType::Pointer image)
 {
   // Create a black image with labeled squares.
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(20);
diff --git a/src/Numerics/Statistics/ComputeTextureFeatures/Code.cxx b/src/Numerics/Statistics/ComputeTextureFeatures/Code.cxx
index 9b35207fb..1c6e193d8 100644
--- a/src/Numerics/Statistics/ComputeTextureFeatures/Code.cxx
+++ b/src/Numerics/Statistics/ComputeTextureFeatures/Code.cxx
@@ -46,8 +46,7 @@ main()
 static void
 CreateImage(ImageType::Pointer image)
 {
-  itk::Index<2> index;
-  index.Fill(0);
+  itk::Index<2> index{};
 
   itk::Size<2> size;
   size.Fill(100);
diff --git a/src/Registration/Common/MatchFeaturePoints/Code.cxx b/src/Registration/Common/MatchFeaturePoints/Code.cxx
index e4181a2ec..8d7dcd6fc 100644
--- a/src/Registration/Common/MatchFeaturePoints/Code.cxx
+++ b/src/Registration/Common/MatchFeaturePoints/Code.cxx
@@ -81,9 +81,8 @@ void
 CreateImage(ImageType::Pointer image, const unsigned int x)
 {
   // Allocate empty image
-  itk::Index<2> start;
-  start.Fill(0);
-  itk::Size<2> size;
+  itk::Index<2> start{};
+  itk::Size<2>  size;
   size.Fill(100);
   ImageType::RegionType region(start, size);
   image->SetRegions(region);
diff --git a/src/Registration/Common/MultiresolutionPyramidFromImage/Code.cxx b/src/Registration/Common/MultiresolutionPyramidFromImage/Code.cxx
index 2e1b49585..22ba9d5c8 100644
--- a/src/Registration/Common/MultiresolutionPyramidFromImage/Code.cxx
+++ b/src/Registration/Common/MultiresolutionPyramidFromImage/Code.cxx
@@ -69,8 +69,7 @@ CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create a black image with a white region
 
-  UnsignedCharImageType::IndexType start;
-  start.Fill(0);
+  UnsignedCharImageType::IndexType start{};
 
   UnsignedCharImageType::SizeType size;
   size.Fill(200);
diff --git a/src/Registration/Common/RegisterImageToAnotherUsingLandmarks/Code.cxx b/src/Registration/Common/RegisterImageToAnotherUsingLandmarks/Code.cxx
index 5a7df0f7b..2b89148e5 100644
--- a/src/Registration/Common/RegisterImageToAnotherUsingLandmarks/Code.cxx
+++ b/src/Registration/Common/RegisterImageToAnotherUsingLandmarks/Code.cxx
@@ -110,8 +110,7 @@ void
 CreateFixedImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
@@ -144,8 +143,7 @@ void
 CreateMovingImage(ImageType::Pointer image)
 {
   // Create a black image with a white square
-  ImageType::IndexType start;
-  start.Fill(0);
+  ImageType::IndexType start{};
 
   ImageType::SizeType size;
   size.Fill(100);
diff --git a/src/Registration/Metricsv4/PerformRegistrationOnVectorImages/Code.cxx b/src/Registration/Metricsv4/PerformRegistrationOnVectorImages/Code.cxx
index a9ad0808e..f3ce7e935 100644
--- a/src/Registration/Metricsv4/PerformRegistrationOnVectorImages/Code.cxx
+++ b/src/Registration/Metricsv4/PerformRegistrationOnVectorImages/Code.cxx
@@ -91,8 +91,7 @@ main(int argc, char * argv[])
   std::cout << "fixedImage->GetLargestPossibleRegion(): " << fixedImage->GetLargestPossibleRegion() << std::endl;
   displacementField->Allocate();
   // Fill it with 0's
-  DisplacementTransformType::OutputVectorType zeroVector;
-  zeroVector.Fill(0.0);
+  DisplacementTransformType::OutputVectorType zeroVector{};
   displacementField->FillBuffer(zeroVector);
   // Assign to transform
   displacementTransform->SetDisplacementField(displacementField);
diff --git a/src/Segmentation/Voronoi/VoronoiDiagram/Code.cxx b/src/Segmentation/Voronoi/VoronoiDiagram/Code.cxx
index 48e6f2c90..050fd1f7e 100644
--- a/src/Segmentation/Voronoi/VoronoiDiagram/Code.cxx
+++ b/src/Segmentation/Voronoi/VoronoiDiagram/Code.cxx
@@ -121,8 +121,7 @@ main()
   {
     using ImageType = itk::Image<unsigned char, 2>;
 
-    ImageType::IndexType start;
-    start.Fill(0);
+    ImageType::IndexType start{};
 
     ImageType::SizeType size;
     size.Fill(100);
diff --git a/src/Segmentation/Watersheds/MorphologicalWatershedSegmentation/Code.cxx b/src/Segmentation/Watersheds/MorphologicalWatershedSegmentation/Code.cxx
index 0d0023068..074f3b841 100644
--- a/src/Segmentation/Watersheds/MorphologicalWatershedSegmentation/Code.cxx
+++ b/src/Segmentation/Watersheds/MorphologicalWatershedSegmentation/Code.cxx
@@ -94,8 +94,7 @@ CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create a white image with 3 dark regions of different values
 
-  itk::Index<2> start;
-  start.Fill(0);
+  itk::Index<2> start{};
 
   itk::Size<2> size;
   size.Fill(200);