Correction erreur de compilation visual

Code/Markov/otbMarkovRandomFieldFilter.h

@@ -249,7 +249,7 @@ public itk::ImageToImageFilter<TInputImage,TClassifiedImage>
      * instead.
     */
     virtual void SetTrainingInput( const TrainingImageType * trainingImage);
-    TrainingImageType* GetTrainingInput(void);
+    const TrainingImageType* GetTrainingInput(void);
     
     
     //Enum to get the stopping condition of the MRF filter

Code/Markov/otbMarkovRandomFieldFilter.txx

@@ -90,7 +90,7 @@ MarkovRandomFieldFilter<TInputImage, TClassifiedImage>
 
 
 template <class TInputImage, class TClassifiedImage>
-typename MarkovRandomFieldFilter<TInputImage, TClassifiedImage>::TrainingImageType*
+const typename MarkovRandomFieldFilter<TInputImage, TClassifiedImage>::TrainingImageType*
 MarkovRandomFieldFilter<TInputImage, TClassifiedImage>
 ::GetTrainingInput(void) 
 {