#pragma once
/*
 *  $Id: hough.h 28793 2025-11-05 08:18:57Z yeti-dn $
 *  Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
 *  E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
 *
 *  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.
 */

#ifndef __GWY_HOUGH_H__
#define __GWY_HOUGH_H__

#include <libgwyddion/field.h>

G_BEGIN_DECLS

void gwy_field_hough_line               (GwyField *dfield,
                                         GwyField *x_gradient,
                                         GwyField *y_gradient,
                                         GwyField *result,
                                         gint hwidth,
                                         gboolean overlapping);
void gwy_field_hough_circle             (GwyField *dfield,
                                         GwyField *x_gradient,
                                         GwyField *y_gradient,
                                         GwyField *result,
                                         gdouble radius);
void gwy_field_hough_line_strenghten    (GwyField *dfield,
                                         GwyField *x_gradient,
                                         GwyField *y_gradient,
                                         gint hwidth,
                                         gdouble threshold);
void gwy_field_hough_circle_strenghten  (GwyField *dfield,
                                         GwyField *x_gradient,
                                         GwyField *y_gradient,
                                         gdouble radius,
                                         gdouble threshold);
gint gwy_field_get_local_maxima_list    (GwyField *dfield,
                                         gdouble *xdata,
                                         gdouble *ydata,
                                         gdouble *zdata,
                                         gint ndata,
                                         gint skip,
                                         gdouble threshold,
                                         gboolean subpixel);
gint gwy_field_get_local_minima_list    (GwyField *dfield,
                                         gdouble *xdata,
                                         gdouble *ydata,
                                         gdouble *zdata,
                                         gint ndata,
                                         gint skip,
                                         gdouble threshold,
                                         gboolean subpixel);
void gwy_field_hough_polar_line_to_field(GwyField *dfield,
                                         gdouble rho,
                                         gdouble theta,
                                         gint *px1,
                                         gint *px2,
                                         gint *py1,
                                         gint *py2);
void gwy_field_hough_field_line_to_polar(gint px1,
                                         gint px2,
                                         gint py1,
                                         gint py2,
                                         gdouble *rho,
                                         gdouble *theta);

G_END_DECLS

#endif

/* vim: set cin columns=120 tw=118 et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
