BUG: virtual method for ConvolutionImageFilter + debug output

Code/BasicFilters/otbConvolutionImageFilter.h

@@ -117,7 +117,7 @@ public:
   itkGetConstReferenceMacro(Radius, InputSizeType);
 
   /** Set the input filter */
-  void SetFilter( ArrayType filter )
+  virtual void SetFilter( ArrayType filter )
   {
     if (filter.Size()!= m_Filter.Size())
     {

Code/BasicFilters/otbConvolutionImageFilter.txx

@@ -65,6 +65,8 @@ ConvolutionImageFilter<TInputImage, TOutputImage, TBoundaryCondition>
 
   // pad the input requested region by the operator radius
   inputRequestedRegion.PadByRadius( m_Radius );
+  otbMsgDevMacro(<<"Padding by " << m_Radius );
+  otbMsgDevMacro(<<"Region is now " << inputRequestedRegion.GetIndex() << ", "<< inputRequestedRegion.GetSize() );
 
   // crop the input requested region at the input's largest possible region
   if ( inputRequestedRegion.Crop(inputPtr->GetLargestPossibleRegion()) )