src/all.hh

   1 #ifndef ALL_HH_
   2 # define ALL_HH_
   3
   4 # include <mln/core/image2d.hh>
   5 # include <mln/value/rgb8.hh>
   6
   7 using mln::image2d;
   8 using mln::point2d;
   9 using mln::value::rgb8;
  10
  11 /// Load a color image from \a path.
  12 image2d<rgb8> load (const char* path);
  13 /// Save a gray-level stretched image \a img to \a path.
  14 void save (const image2d<float>& img, const char* path);
  15
  16 /// Compute the energy in \a img using the norm of the gradient.
  17 image2d<float> get_nrg (const image2d<rgb8>& img);
  18 /// Compute the entropy in \a img using a 9x9 window.
  19 image2d<float> get_entropy (const image2d<rgb8>& img);
  20
  21 /** Find a vertical seam in the image.  The process only relies on the
  22  *  energy in the image.
  23  *  \param nrg The energy in the image.
  24  *  \return A vector with the points in the seam.  Let \c c be the \c r th
  25  *  value in the vector.  This means that the seam passes by the point
  26  *  (r, c) in the image.
  27  */
  28 std::vector<unsigned>
  29 find_vertical_seam (const image2d<float> nrg);
  30
  31 /** Carve a seam out of an image.
  32  *  \param img Image to modify.
  33  *  \param path Path of the seam to carve.
  34  *  \return \a img with the seam \a path carved out.
  35  */
  36 template <typename T>
  37 image2d<T>
  38 carve_vertical_seam (const image2d<T> img, const std::vector<unsigned>& path);
  39
  40 image2d<rgb8>
  41 uncarve_vertical_seam (const image2d<rgb8> img, const std::vector<unsigned>& path);
  42
  43 #endif /* !ALL_HH_ */