diff --git a/Modules/Visualization/MonteverdiCore/include/mvdCore.h b/Modules/Visualization/MonteverdiCore/include/mvdCore.h
index 8b4550072d8dab39ef633e60eb720ea699ce82e0..d0e2582253a3d5d754d5d6feb6c456b716043e10 100644
--- a/Modules/Visualization/MonteverdiCore/include/mvdCore.h
+++ b/Modules/Visualization/MonteverdiCore/include/mvdCore.h
@@ -145,6 +145,20 @@ extern
 char const * const
 EFFECT_NAMES[ EFFECT_COUNT ];
 
+/**
+ */
+OTBMonteverdiCore_EXPORT
+extern
+bool
+OVERVIEWS_ENABLED_DEFAULT;
+
+/**
+ */
+OTBMonteverdiCore_EXPORT
+extern
+int
+OVERVIEWS_SIZE_DEFAULT;
+
 } // end of namespace mvd.
 
 
diff --git a/Modules/Visualization/MonteverdiCore/src/mvdCore.cxx b/Modules/Visualization/MonteverdiCore/src/mvdCore.cxx
index b726a4a897e0b37e2e87e59fb0d52d961b4766d6..c9d04afd901e5a7aa4b845122dd54d16d8caab24 100644
--- a/Modules/Visualization/MonteverdiCore/src/mvdCore.cxx
+++ b/Modules/Visualization/MonteverdiCore/src/mvdCore.cxx
@@ -92,6 +92,12 @@ EFFECT_NAMES[ EFFECT_COUNT ] =
   QT_TRANSLATE_NOOP( "mvd", "Swipe (vertical)" ),
 };
 
+bool
+OVERVIEWS_ENABLED_DEFAULT = true;
+
+int
+OVERVIEWS_SIZE_DEFAULT = 512;
+
 
 /*****************************************************************************/
 /* STATIC IMPLEMENTATION SECTION                                             */
diff --git a/Modules/Visualization/MonteverdiGui/include/mvdGui.h b/Modules/Visualization/MonteverdiGui/include/mvdGui.h
index bc941cd67563c45f2b9599deb1f745e744be76fd..821e20268296728050e1afe7ee6a581dbd789427 100644
--- a/Modules/Visualization/MonteverdiGui/include/mvdGui.h
+++ b/Modules/Visualization/MonteverdiGui/include/mvdGui.h
@@ -97,7 +97,9 @@ enum Resolution
   RESOLUTION_LOWER,
   RESOLUTION_UPPER,
   //
-  RESOLUTION_COUNT
+  RESOLUTION_COUNT,
+  //
+  RESOLUTION_DEFAULT = RESOLUTION_NEAREST,
 };
 
 /**