DOC: Adding doxygen information

Code/BasicFilters/otbPolygonCompacityFunctor.h

@@ -24,7 +24,18 @@ namespace otb
 {
 
     /** \class PolygonCompacityFunctor
-     *  \brief 
+     *  \brief Select polygons according to their compacity
+     *
+   * This functor compute the compacity of a polygon
+   * and return true is the distance is above the threshold, false otherwise.
+   *
+   * The compacity is defined as:
+   *
+   *  \f$ 4\pi \frac{S}{L}\f$
+    * 
+   * where \f$ S \f$ is the surface (obtained by the method GetSurface() ) 
+    * and \f$ L \f$ the perimeter (obtained by the method GetLength() ).
+     *
      *  \ingroup Functor
      */
   template <class TInput1>

Code/FeatureExtraction/otbRemoveTortuousPathListFilter.h

@@ -29,7 +29,7 @@ namespace otb
    *  \brief This filter remove path considered as tortuous.
    *
    *  A path is considered to be tortuous if the mean distance between each consecutive vertices
-   *  is lower than the user provided threshold.
+   *  is strictly lower than the user provided threshold.
    *
    * \sa BreakAngularPathListFilter
    * \sa SimplifyPathFilter
@@ -37,6 +37,8 @@ namespace otb
    *<b>Recent API changes:</b>
    * Now part of the UnaryFunctorObjectListBooleanFilter hierachy, replace call to SetMeanDistanceThreshold()
    * by GetFunctor.SetThreshold().
+   * 
+   * The inequality is now a strict one.
    *
    * \example FeatureExtraction/ExtractRoadByStepsExample.cxx
    *