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#ifndef PolFitMethod_H
#define PolFitMethod_H
// This file is ORPHAN: it is not used or referenced, because it implements
// a method which is not used, and I wanted to remove the GSL dependence.
#include <gsl/gsl_vector.h>
#include <gsl/gsl_matrix.h>
#include <gsl/gsl_multifit_nlin.h>
#include <AOFlagger/msio/image2d.h>
#include <AOFlagger/msio/mask2d.h>
#include <AOFlagger/msio/timefrequencydata.h>
#include <AOFlagger/strategy/algorithms/surfacefitmethod.h>
namespace algorithms {
class PolFitMethod : public SurfaceFitMethod {
public:
enum Method { None, LeastSquare, LeastAbs };
PolFitMethod();
~PolFitMethod();
virtual void Initialize(const TimeFrequencyData& input);
virtual unsigned TaskCount();
virtual void PerformFit(unsigned taskNumber);
virtual TimeFrequencyData Background() { return *_background; }
virtual enum TimeFrequencyData::PhaseRepresentation PhaseRepresentation()
const {
return TimeFrequencyData::AmplitudePart;
}
private:
long double Evaluate(unsigned x, unsigned y, long double* coefficients);
static int SquareError(const gsl_vector* coefs, void* data, gsl_vector* f);
static int SquareErrorDiff(const gsl_vector* x, void* data, gsl_matrix* J);
static int SquareErrorComb(const gsl_vector* x, void* data, gsl_vector* f,
gsl_matrix* J) {
SquareError(x, data, f);
SquareErrorDiff(x, data, J);
return GSL_SUCCESS;
}
static int LinError(const gsl_vector* coefs, void* data, gsl_vector* f);
static int LinErrorDiff(const gsl_vector* x, void* data, gsl_matrix* J);
static int LinErrorComb(const gsl_vector* x, void* data, gsl_vector* f,
gsl_matrix* J) {
LinError(x, data, f);
LinErrorDiff(x, data, J);
return GSL_SUCCESS;
}
long double CalculateBackgroundValue(unsigned x, unsigned y);
long double FitBackground(unsigned x, unsigned y, ThreadLocal& local);
Image2DCPtr _original;
class TimeFrequencyData* _background;
Image2DPtr _background2D;
Mask2DCPtr _mask;
unsigned _hSquareSize, _vSquareSize;
long double _precision;
long double* _previousCoefficients;
long double _hKernelSize, _vKernelSize;
enum Method _method;
};
} // namespace algorithms
#endif
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