BUG: const method in prolate

Code/BasicFilters/otbProlateInterpolateImageFunction.h

@@ -62,7 +62,7 @@ public:
   {
     return m_OriginalProfile;
   }
-  double ComputeEnergy(double resampleRatio);
+  double ComputeEnergy(double resampleRatio) const;
 
   inline TOutput operator()( const TInput & A ) const
   {

Code/BasicFilters/otbProlateInterpolateImageFunction.txx

@@ -101,7 +101,7 @@ ProlateFunction<TInput, TOutput>
 template<class TInput, class TOutput>
 double
 ProlateFunction<TInput, TOutput>
-::ComputeEnergy(double resampleRatio)
+::ComputeEnergy(double resampleRatio) const
 {
   vnl_vector<vcl_complex<double> > resampledProfile(1024);
   resampledProfile.fill(0);