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/* $Id: hdrl_correlation.h,v 0.1 2017-04-12 16:49:47 msalmist Exp $
*
* This file is part of the HDRL
* Copyright (C) 2017 European Southern Observatory
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* $Author: msalmist $
* $Date: 2017-04-12 16:49:47 $
* $Revision: 0.1 $
* $Name: not supported by cvs2svn $
*/
#ifndef HDRL_CORRELATION_H
#define HDRL_CORRELATION_H
/*-----------------------------------------------------------------------------
Includes
-----------------------------------------------------------------------------*/
#include <cpl.h>
#include "hdrl_types.h"
CPL_BEGIN_DECLS
typedef struct{
double peakpos; /* Position of the peak of the gaussian fitted to the cross correlation */
double sigma; /* Width of the gaussian fitted to the cross correlation */
double area; /* Area of the gaussian fitted to the cross correlation */
double offset; /* Fitted background level */
double mse; /* Mean squared error of the best fit */
cpl_array * xcorr; /* Cross-correlation */
cpl_size pix_peakpos; /* Pixel position of the peak */
cpl_size half_window;
}hdrl_xcorrelation_result;
hdrl_xcorrelation_result *
hdrl_xcorrelation_result_wrap(cpl_array * x_corr, const cpl_size max_idx,
const cpl_size half_window);
void hdrl_xcorrelation_result_delete(hdrl_xcorrelation_result * self);
cpl_size
hdrl_xcorrelation_result_get_peak_pixel(const hdrl_xcorrelation_result * self);
double
hdrl_xcorrelation_result_get_peak_subpixel(const hdrl_xcorrelation_result * self);
cpl_size
hdrl_xcorrelation_result_get_half_window (const hdrl_xcorrelation_result * self);
double
hdrl_xcorrelation_result_get_sigma(const hdrl_xcorrelation_result * self);
const cpl_array *
hdrl_xcorrelation_result_get_correlation(const hdrl_xcorrelation_result * self);
hdrl_xcorrelation_result * hdrl_compute_xcorrelation(
const cpl_array * arr1,
const cpl_array * arr2,
const cpl_size half_window, const cpl_boolean normalize);
hdrl_xcorrelation_result * hdrl_compute_offset_gaussian(
const cpl_array * arr1,
const cpl_array * arr2,
const cpl_size half_win, const cpl_boolean normalize,
const double bin, const double wrange);
#if defined HDRL_USE_PRIVATE
hdrl_xcorrelation_result *
hdrl_compute_offset_gaussian_internal(
const cpl_array * arr1, const cpl_array * arr2,
const cpl_size half_win, const cpl_boolean normalize,
const double bin, const double wrange);
#endif
CPL_END_DECLS
#endif
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