https://svn.lrde.epita.fr/svn/oln/trunk/milena
Index: ChangeLog
from Thierry Geraud <thierry.geraud(a)lrde.epita.fr>
Minor fixes.
* mln/accu/mean.hh (to_result): Make it work even if it is
not valid. That is a safety when computing mean values of a
collection of labels.
* mln/value/label.hh: Fix missing forward declaration.
* mln/fun/i2v/array.hh: Upgrade file doc style.
accu/mean.hh | 2 ++
fun/i2v/array.hh | 3 +++
value/label.hh | 6 ++++--
3 files changed, 9 insertions(+), 2 deletions(-)
Index: mln/accu/mean.hh
--- mln/accu/mean.hh (revision 3350)
+++ mln/accu/mean.hh (working copy)
@@ -151,6 +151,8 @@
mean<T,S,M>::to_result() const
{
unsigned n = count_.to_result();
+ if (n == 0u)
+ return M(); // Safety.
return static_cast<M>(sum_.to_result() / n);
}
Index: mln/value/label.hh
--- mln/value/label.hh (revision 3350)
+++ mln/value/label.hh (working copy)
@@ -1,4 +1,5 @@
-// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE)
+// Copyright (C) 2007, 2008, 2009 EPITA Research and Development
+// Laboratory (LRDE)
//
// This file is part of the Olena Library. This library is free
// software; you can redistribute it and/or modify it under the terms
@@ -44,9 +45,10 @@
namespace mln
{
- // Forward declaration.
+ // Forward declarations.
namespace value {
template <unsigned n> struct label;
+ template <unsigned n> struct int_u;
}
namespace literal {
Index: mln/fun/i2v/array.hh
--- mln/fun/i2v/array.hh (revision 3350)
+++ mln/fun/i2v/array.hh (working copy)
@@ -34,6 +34,9 @@
///
/// \todo Change design so that there is no multiple inheritance:
/// array<T> : internal::array_base<T, E==array<T> > : Function_i2v<E>
+///
+/// \todo We should convert (with from_to) arrays that do not hold the
+/// same element type, e.g., int_u8 -> int or vec<3,f> -> rgb8.
# include <vector>
# include <algorithm>
* mln/labeling/mean_values.hh: New. Create an image with the component
mean values.
---
milena/ChangeLog | 7 ++
milena/mln/labeling/mean_values.hh | 190 ++++++++++++++++++++++++++++++++++++
2 files changed, 197 insertions(+), 0 deletions(-)
create mode 100644 milena/mln/labeling/mean_values.hh
diff --git a/milena/ChangeLog b/milena/ChangeLog
index fb64ae9..92e7c44 100644
--- a/milena/ChangeLog
+++ b/milena/ChangeLog
@@ -1,5 +1,12 @@
2009-02-11 Guillaume Lazzara <z(a)lrde.epita.fr>
+ Add labeling::mean_values.
+
+ * mln/labeling/mean_values.hh: New. Create an image with the component
+ mean values.
+
+2009-02-11 Guillaume Lazzara <z(a)lrde.epita.fr>
+
Various small fixes.
* mln/convert/from_to.hxx
diff --git a/milena/mln/labeling/mean_values.hh b/milena/mln/labeling/mean_values.hh
new file mode 100644
index 0000000..d7c131a
--- /dev/null
+++ b/milena/mln/labeling/mean_values.hh
@@ -0,0 +1,190 @@
+// Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
+//
+// This file is part of the Olena Library. This library is free
+// software; you can redistribute it and/or modify it under the terms
+// of the GNU General Public License version 2 as published by the
+// Free Software Foundation.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this library; see the file COPYING. If not, write to
+// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+// Boston, MA 02111-1307, USA.
+//
+// As a special exception, you may use this file as part of a free
+// software library without restriction. Specifically, if other files
+// instantiate templates or use macros or inline functions from this
+// file, or you compile this file and link it with other files to
+// produce an executable, this file does not by itself cause the
+// resulting executable to be covered by the GNU General Public
+// License. This exception does not however invalidate any other
+// reasons why the executable file might be covered by the GNU General
+// Public License.
+
+#ifndef MLN_LABELING_MEAN_VALUES_HH
+# define MLN_LABELING_MEAN_VALUES_HH
+
+# include <mln/core/concept/image.hh>
+
+/// \file mln/labeling/mean_values.hh
+///
+/// Construct from a labeled image a new image, the labels values are
+/// replaced by the components mean values.
+
+
+namespace mln
+{
+
+ // Forward declaration
+ namespace value
+ {
+ template <unsigned n> struct rgb;
+ }
+
+
+ namespace labeling
+ {
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_colors(const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels);
+
+
+# ifndef MLN_INCLUDE_ONLY
+
+ namespace internal
+ {
+
+ template <typename I, typename L>
+ void
+ mean_values_tests(const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+ {
+ mln_precondition(exact(input).is_valid());
+ mln_precondition(exact(lbl).is_valid());
+ (void) input;
+ (void) lbl;
+ (void) nlabels;
+ }
+
+ } // end of namespace mln::labeling::internal
+
+
+ namespace impl
+ {
+
+ namespace generic
+ {
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_values(const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+ {
+ internal::mean_values_tests(input, lbl, nlabels);
+
+ trace::warning("labeling::impl::generic::mean_values() is not \
+ implemented!");
+ //FIXME: to write!
+ abort();
+ }
+
+ }
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_values_rgb(const Image<I>& input_,
+ const Image<L>& lbl_, mln_value(L) nlabels)
+ {
+ trace::entering("mln::labeling::mean_values_rgb");
+
+ internal::mean_values_tests(input_, lbl_, nlabels);
+
+ const I& input = exact(input_);
+ const L& lbl = exact(lbl_);
+
+ util::array<vec3d_f> m_3f = labeling::compute(accu::mean<mln_value(I)>(),
+ input, // input color image
+ lbl, // watershed labeling
+ nlabels);
+ m_3f[0] = literal::zero;
+
+ util::array<mln_value(I)> m;
+ convert::from_to(m_3f, m);
+ m[0] = literal::white; //FIXME: handle label 0 correctly.
+
+ mln_concrete(I) output = level::transform(lbl,
+ convert::to< fun::i2v::array<mln_value(I)> >(m));
+
+
+ trace::exiting("mln::labeling::mean_values_rgb");
+ return output;
+ }
+
+ } // end of namespace mln::morpho::impl
+
+
+ namespace internal
+ {
+
+ template <unsigned n, typename I, typename L>
+ mln_concrete(I)
+ mean_values_dispatch(const value::rgb<n>&,
+ const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+ {
+ return impl::mean_values_rgb(input, lbl, nlabels);
+ }
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_values_dispatch(const mln_value(I)&,
+ const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+ {
+ return impl::generic::mean_values(input, lbl, nlabels);
+ }
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_values_dispatch(const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+ {
+ return mean_values_dispatch(mln_value(I)(), input, lbl, nlabels);
+ }
+
+ } // end of namespace mln::morpho::internal
+
+
+
+ // Facade
+
+ template <typename I, typename L>
+ mln_concrete(I)
+ mean_values(const Image<I>& input,
+ const Image<L>& lbl, mln_value(L) nlabels)
+
+ {
+ trace::entering("mln::labeling::mean_values");
+
+ internal::mean_values_tests(input, lbl, nlabels);
+
+ mln_concrete(I) output = internal::mean_values_dispatch(input, lbl, nlabels);
+
+ trace::exiting("mln::labeling::mean_values");
+ return output;
+ }
+
+
+# endif // !MLN_INCLUDE_ONLY
+
+ } // end of namespace mln::labeling
+
+} // end of namespace mln
+
+#endif // ! MLN_LABELING_MEAN_VALUES_HH
--
1.5.6.5