STYLE: Use CTAD for Image Iterator variables in hxx files

Used class template argument deduction (CTAD) when declaring variables of an
Image Iterator type.

Using Notepad++, Replace in Files, doing:

    Find what: ([^\w]Image\w+Iterator)<.+>[ ]*( \w+[\({])
    Replace with: $1$2
    Files: itk*.hxx
    [v] Match case
    (*) Regular expression

Follow-up to pull request InsightSoftwareConsortium#5982
commit b6a38b1
"STYLE: Use CTAD for `ImageRegionIterator` variables in hxx files"

Author: N-Dekker

Modules/Core/Common/include/itkImageAlgorithm.hxx

@@ -36,8 +36,8 @@ ImageAlgorithm::ReferenceCopy(const InputImageType *                       inIma
 {
   if (inRegion.GetSize()[0] == outRegion.GetSize()[0])
   {
-    ImageScanlineConstIterator<InputImageType> it(inImage, inRegion);
-    ImageScanlineIterator                      ot(outImage, outRegion);
+    ImageScanlineConstIterator it(inImage, inRegion);
+    ImageScanlineIterator      ot(outImage, outRegion);
 
     while (!it.IsAtEnd())
     {

Modules/Filtering/ImageCompare/include/itkSTAPLEImageFilter.hxx

@@ -86,8 +86,8 @@ STAPLEImageFilter<TInputImage, TOutputImage>::GenerateData()
       itkExceptionStringMacro("One or more input images do not contain matching RequestedRegions");
     }
 
-    ImageScanlineConstIterator<TInputImage> in(this->GetInput(i), W->GetRequestedRegion());
-    ImageScanlineIterator<TOutputImage>     out(W, W->GetRequestedRegion());
+    ImageScanlineConstIterator in(this->GetInput(i), W->GetRequestedRegion());
+    ImageScanlineIterator      out(W, W->GetRequestedRegion());
 
     while (!in.IsAtEnd())
     {
@@ -110,7 +110,7 @@ STAPLEImageFilter<TInputImage, TOutputImage>::GenerateData()
   double N = 0.0;
   double g_t = 0.0;
   {
-    ImageScanlineIterator<TOutputImage> out(W, W->GetRequestedRegion());
+    ImageScanlineIterator out(W, W->GetRequestedRegion());
     while (!out.IsAtEnd())
     {
       while (!out.IsAtEndOfLine())
@@ -130,8 +130,8 @@ STAPLEImageFilter<TInputImage, TOutputImage>::GenerateData()
     // Now iterate on estimating specificity and sensitivity
     for (unsigned int i = 0; i < number_of_input_files; ++i)
     {
-      ImageScanlineConstIterator<TInputImage> in(this->GetInput(i), W->GetRequestedRegion());
-      ImageScanlineIterator<TOutputImage>     out(W, W->GetRequestedRegion());
+      ImageScanlineConstIterator in(this->GetInput(i), W->GetRequestedRegion());
+      ImageScanlineIterator      out(W, W->GetRequestedRegion());
 
       double p_num{};
       double p_denom{};
@@ -173,7 +173,7 @@ STAPLEImageFilter<TInputImage, TOutputImage>::GenerateData()
       D_it[i] = ImageScanlineConstIterator<TInputImage>(this->GetInput(i), W->GetRequestedRegion());
     }
 
-    ImageScanlineIterator<TOutputImage> out(W, W->GetRequestedRegion());
+    ImageScanlineIterator out(W, W->GetRequestedRegion());
     while (!out.IsAtEnd())
     {
       while (!out.IsAtEndOfLine())

Modules/Filtering/Smoothing/include/itkBinomialBlurImageFilter.hxx

@@ -182,7 +182,7 @@ BinomialBlurImageFilter<TInputImage, TOutputImage>::GenerateData()
       itkDebugMacro("End processing forward dimension " << dim);
 
       //----------------------Reverse pass----------------------
-      ImageRegionReverseIterator<TTempImage> tempReverseIt(tempPtr, tempPtr->GetRequestedRegion());
+      ImageRegionReverseIterator tempReverseIt(tempPtr, tempPtr->GetRequestedRegion());
 
       tempReverseIt.GoToBegin();