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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
/** \file
* \ingroup freestyle
* \brief Functions taking 0D input
*/
#include "../image/GaussianFilter.h"
#include "../image/Image.h"
#include "../view_map/Functions0D.h"
//
// Functions definitions
//
///////////////////////////////////////////////////////////
namespace Freestyle {
namespace Functions0D {
// DensityF0D
/*! Returns the density of the (result) image evaluated at an Interface0D.
* This density is evaluated using a pixels square window around the evaluation point and
* integrating these values using a gaussian.
*/
class DensityF0D : public UnaryFunction0D<double> {
public:
/*! Builds the functor from the gaussian sigma value.
* \param sigma:
* sigma indicates the x value for which the gaussian function is 0.5.
* It leads to the window size value. (the larger, the smoother)
*/
DensityF0D(double sigma = 2) : UnaryFunction0D<double>()
{
_filter.setSigma((float)sigma);
}
/*! Returns the string "DensityF0D" */
string getName() const
{
return "DensityF0D";
}
/*! The () operator. */
int operator()(Interface0DIterator &iter);
private:
GaussianFilter _filter;
};
// LocalAverageDepthF0D
/*! Returns the average depth around a point.
* The result is obtained by querying the depth buffer on a window around that point.
*/
class LocalAverageDepthF0D : public UnaryFunction0D<double> {
private:
GaussianFilter _filter;
public:
/*! Builds the functor from the size of the mask that will be used. */
LocalAverageDepthF0D(real maskSize = 5.0f) : UnaryFunction0D<double>()
{
_filter.setSigma((float)maskSize / 2.0f);
}
/*! Returns the string "LocalAverageDepthF0D" */
string getName() const
{
return "LocalAverageDepthF0D";
}
/*! the () operator. */
int operator()(Interface0DIterator &iter);
};
// ReadMapPixel
/*! Reads a pixel in a map. */
class ReadMapPixelF0D : public UnaryFunction0D<float> {
private:
const char *_mapName;
int _level;
public:
/*! Builds the functor from name of the
* Map that must be read.
* \param iMapName:
* The name of the map.
* \param level:
* The level of the pyramid from which the pixel must be read.
*/
ReadMapPixelF0D(const char *iMapName, int level) : UnaryFunction0D<float>()
{
_mapName = iMapName;
_level = level;
}
/*! Returns the string "ReadMapPixelF0D" */
string getName() const
{
return "ReadMapPixelF0D";
}
/*! the () operator. */
int operator()(Interface0DIterator &iter);
};
// ReadSteerableViewMapPixel
/*! Reads a pixel in one of the level of one of the steerable viewmaps. */
class ReadSteerableViewMapPixelF0D : public UnaryFunction0D<float> {
private:
unsigned _orientation;
int _level;
public:
/*! Builds the functor
* \param nOrientation:
* The integer belonging to [0,4] indicating the orientation (E,NE,N,NW) we are interested in.
* \param level:
* The level of the pyramid from which the pixel must be read.
*/
ReadSteerableViewMapPixelF0D(unsigned nOrientation, int level) : UnaryFunction0D<float>()
{
_orientation = nOrientation;
_level = level;
}
/*! Returns the string "ReadSteerableViewMapPixelF0D" */
string getName() const
{
return "ReadSteerableViewMapPixelF0D";
}
/*! the () operator. */
int operator()(Interface0DIterator &iter);
};
// ReadCompleteViewMapPixel
/*! Reads a pixel in one of the level of the complete viewmap. */
class ReadCompleteViewMapPixelF0D : public UnaryFunction0D<float> {
private:
int _level;
public:
/*! Builds the functor
* \param level:
* The level of the pyramid from which the pixel must be read.
*/
ReadCompleteViewMapPixelF0D(int level) : UnaryFunction0D<float>()
{
_level = level;
}
/*! Returns the string "ReadCompleteViewMapPixelF0D" */
string getName() const
{
return "ReadCompleteViewMapPixelF0D";
}
/*! the () operator. */
int operator()(Interface0DIterator &iter);
};
// GetViewMapGradientNormF0D
/*! Returns the norm of the gradient of the global viewmap density image. */
class GetViewMapGradientNormF0D : public UnaryFunction0D<float> {
private:
int _level;
float _step;
public:
/*! Builds the functor
* \param level:
* The level of the pyramid from which the pixel must be read.
*/
GetViewMapGradientNormF0D(int level) : UnaryFunction0D<float>()
{
_level = level;
_step = (float)pow(2.0, _level);
}
/*! Returns the string "GetOccludeeF0D" */
string getName() const
{
return "GetViewMapGradientNormF0D";
}
/*! the () operator. */
int operator()(Interface0DIterator &iter);
};
} // end of namespace Functions0D
} /* namespace Freestyle */
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