Merge branch 'change_nodata' into 'release-6.6'

ManageNoData 'change no data value' mode

See merge request orfeotoolbox/otb!111

Modules/Filtering/ImageManipulation/include/otbChangeNoDataValueFilter.h

@@ -80,12 +80,17 @@ public:
  *  - NaN values will be considered as no data and replaced as well
  *  - Output image will have no-data flags and values for all bands
  *
- *  If NaNIsNoData is false:
+ *  If NaNIsNoData is false and the input has at least one band with no-data 
+ *  flag and no-data value :
  *  - Band for which input no-data flags is false will remain
  *    untouched
  *  - Output image will have no-data flags and values only for bands
  *    for which input no-data flag is true.
  * 
+ *  If NaNIsNoData is false and the input has no band with no-data 
+ *  flag and no-data value :
+ *  - Output image will have no-data flags and values for all bands
+ * 
  * \ingroup Streamed
  * \ingroup MultiThreaded
  * \ingroup OTBImageManipulation
@@ -160,7 +165,7 @@ protected:
     
     std::vector<bool> flags = noDataValueAvailable;
     
-    if(this->GetFunctor().m_NaNIsNoData)
+    if((this->GetFunctor().m_NaNIsNoData) || (!ret))
       {
       flags = std::vector<bool>(flags.size(),true);
       }