hotpixelsweights.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2005-03-27
 * Description : a class to calculate filter weights for hot pixels tool
 *
 * Copyright (C) 2005-2006 by Unai Garro <ugarro at users dot sourceforge dot net>
 * Copyright (C) 2005-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * 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, 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.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_HOT_PIXELS_WEIGHTS_H
#define DIGIKAM_HOT_PIXELS_WEIGHTS_H
 
// Qt includes
 
#include <QList>
#include <QRect>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_EXPORT HotPixelsWeights
{
 
public:
 
    HotPixelsWeights();
    HotPixelsWeights(const HotPixelsWeights& w);
    ~HotPixelsWeights();
 
    HotPixelsWeights& operator=(const HotPixelsWeights& w);
    bool operator==(const HotPixelsWeights& ws) const;
    double** operator[](int n)                  const;
 
    unsigned int height()                       const;
    void setHeight(int h);
 
    unsigned int polynomeOrder()                const;
    void setPolynomeOrder(int order);
 
    bool twoDim() const;
    void setTwoDim(bool td);
 
    void setWidth(int w);
    unsigned int width()                        const;
 
    const QList<QPoint> positions()             const;
 
    void calculateHotPixelsWeights();
 
protected:
 
    int coefficientNumber()                     const;
 
    double** * weightMatrices()                 const;
 
private:
 
    double polyTerm(const size_t i_coeff,
                    const int x,
                    const int y,
                    const int poly_order)       const;
 
    void   matrixInv(double* const a,
                     const size_t size);
 
private:
 
    unsigned int  m_height;
    unsigned int  m_width;
    unsigned int  m_coefficientNumber;
    bool          m_twoDim;
    unsigned int  m_polynomeOrder;
    double** *    m_weightMatrices;     
    QList<QPoint> m_positions;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_HOT_PIXELS_WEIGHTS_H