BUG: converting dangerous #define to static const member

Code/ChangeDetection/otbCBAMIChangeDetector.h

@@ -53,7 +53,7 @@ namespace otb
  * \ingroup IntensityImageFilters Multithreaded
  */
 
-#define epsilon 0.01
+// #define EPSILON_VALUE_CBAMI 0.01
 
 namespace Functor
 {
@@ -93,6 +93,8 @@ public:
 
 protected:
 
+  static const double epsilon = 0.01;
+
   inline void normalizeInPlace(VectorType vx)
   {