ENH: prefer vnl_matrix::fill over loop.

Author: blowekamp

include/itkCoocurrenceTextureFeaturesImageFilter.hxx

@@ -182,13 +182,8 @@ CoocurrenceTextureFeaturesImageFilter<TInputImage, TOutputImage>
         continue;
         }
       // Initialisation of the histogram
-      for(unsigned int a = 0; a < m_NumberOfBinsPerAxis; a++)
-        {
-        for(unsigned int b = 0; b < m_NumberOfBinsPerAxis; b++)
-          {
-          hist[a][b] = 0;
-          }
-        }
+      hist.fill(0);
+
       totalNumberOfFreq = 0;
       // Iteration over all the offsets
       for( offsets = m_Offsets->Begin(); offsets != m_Offsets->End(); ++offsets )