Milena: Add helpers to instantiate mln::interpolated and mln::tr_image.

	* mln/core/image/imorph/interpolated.hh (mln::interpolate)
	* mln/core/image/imorph/tr_image.hh (mln::apply_tr):
	New functions.

milena/ChangeLog

+2013-10-09  Roland Levillain  <roland@lrde.epita.fr>
+
+	Milena: Add helpers to instantiate mln::interpolated and mln::tr_image.
+
+	* mln/core/image/imorph/interpolated.hh (mln::interpolate)
+	* mln/core/image/imorph/tr_image.hh (mln::apply_tr):
+	New functions.
+
 2013-10-09  Roland Levillain  <roland@lrde.epita.fr>
 	Milena: Exercise mln::interpolated and mln::tr_image together.

milena/mln/core/image/imorph/interpolated.hh

@@ -138,6 +138,22 @@ namespace mln
   };
 
 
+  /** \brief Helper routine to create an mln::interpolated morphed
+      image.
+
+      Careful, the order of the template parameters is inverted
+      compared to mln::interpolated.  This is so that the routine can
+      be used this way:
+
+      \code
+      mln::interpolate<mln::fun::x2v::bilinear>(ima);
+      \encode
+
+      (i.e., so that parameter I can be deduced from \a ima).  */
+  template <template <class> class F, typename I>
+  interpolated<I, F> interpolate(Image<I>& ima);
+
+
 
 # ifndef MLN_INCLUDE_ONLY
 
@@ -216,6 +232,15 @@ namespace mln
   }
 
 
+  // interpolate.
+
+  template <template <class> class F, typename I>
+  interpolated<I, F> interpolate(Image<I>& ima)
+  {
+    interpolated<I, F> tmp(exact(ima));
+    return tmp;
+  }
+
 # endif // ! MLN_INCLUDE_ONLY
 
 } // end of namespace mln

milena/mln/core/image/imorph/tr_image.hh

@@ -155,6 +155,19 @@ namespace mln
   };
 
 
+  /// \brief Helper routine to create an mln::tr_image morphed image.
+  template <typename S, typename I, typename T>
+  tr_image<S, I, T>
+  apply_tr(const Site_Set<S>& s, const Image<I>& ima,
+           const Function_v2v<T>& tr);
+
+  /// \brief Helper routine to create an mln::tr_image morphed
+  /// images.  The domain is deduced from \a ima.
+  template <typename I, typename T>
+  tr_image<mln_domain(I), I, T>
+  apply_tr(const Image<I>& ima, const Function_v2v<T>& tr);
+
+
 
 # ifndef MLN_INCLUDE_ONLY
 
@@ -265,6 +278,27 @@ namespace mln
     return tmp;
   }
 
+
+  /// transform.
+
+  template <typename S, typename I, typename T>
+  tr_image<S, I, T>
+  apply_tr(const Site_Set<S>& s, const Image<I>& ima,
+           const Function_v2v<T>& tr)
+  {
+    tr_image<S, I, T> tmp(exact(s), exact(ima), exact(tr));
+    return tmp;
+  }
+
+  template <typename I, typename T>
+  tr_image<mln_domain(I), I, T>
+  apply_tr(const Image<I>& ima, const Function_v2v<T>& tr)
+  {
+    tr_image<mln_domain(I), I, T> tmp(exact(ima).domain(), exact(ima),
+                                      exact(tr));
+    return tmp;
+  }
+
 # endif // ! MLN_INCLUDE_ONLY
 
 } // end of namespace mln