/usr/include/visp/vpMomentBasic.h is in libvisp-dev 2.8.0-4.
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*
* $Id: vpMomentBasic.h 4056 2013-01-05 13:04:42Z fspindle $
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2013 by INRIA. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.txt at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using ViSP with software that can not be combined with the GNU
* GPL, please contact INRIA about acquiring a ViSP Professional
* Edition License.
*
* See http://www.irisa.fr/lagadic/visp/visp.html for more information.
*
* This software was developed at:
* INRIA Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
* http://www.irisa.fr/lagadic
*
* If you have questions regarding the use of this file, please contact
* INRIA at visp@inria.fr
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Description:
* Basic moment descriptor
*
* Authors:
* Filip Novotny
*
*****************************************************************************/
/*!
\file vpMomentBasic.h
\brief Basic moment descriptor (also called m).
*/
#ifndef __MOMENTBASIC_H__
#define __MOMENTBASIC_H__
#include <visp/vpMoment.h>
/*!
\class vpMomentBasic
\ingroup TrackingMoments
\brief This class defines the 2D basic moment \f$m_{ij}\f$.
This class is a wrapper for vpMomentObject wich allows to use it as a moment.
This enables all common operations such as adding to a vpMomentDatabase.
In the case of a dense object \e O, 2D basic moments are defined by:
\f[m_{ij} = \int \int_{O} x^j y^j dx dy\f]
In the case of a discrete set of \e n points, the basic moments are defined by
\f[m_{ij} = \sum_{k=1}^{n} x_k^j y_k^j \f]
The selection of a dense or discrete object is done in vpMomentObject.
The maximum order of vpMomentBasic is the same as that of vpMomentObject (ie: \f$i+j \leq \f$ vpMomentObject::getOrder).
Note that in the continuous case, the basic moment \f$m_{00}\f$ corresponds to the surface \f$a\f$ of the object.
In the discrete case, it is the number of discrete points \f$n\f$.
*/
class VISP_EXPORT vpMomentBasic : public vpMoment {
public:
vpMomentBasic();
void compute();
std::vector<double>& get();
double get(unsigned int i,unsigned int j);
/*!
Moment name.
*/
const char* name(){ return "vpMomentBasic";}
};
std::ostream & operator<<(std::ostream & os, vpMomentBasic& v);
#endif
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