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/*
*
* cvEyeTracker 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.
*
* cvEyeTracker 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 cvEyeTracker; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* cvEyeTracker - Version 1.2.5
* Part of the openEyes ToolKit -- http://hcvl.hci.iastate.edu/openEyes
* Release Date:
* Authors : Dongheng Li <dhli@iastate.edu>
* Derrick Parkhurst <derrick.parkhurst@hcvl.hci.iastate.edu>
* Jason Babcock <babcock@nyu.edu>
* David Winfield <dwinfiel@iastate.edu>
* Copyright (c) 2004-2006
* All Rights Reserved.
*
*/
#ifndef _RANSAC_ELLIPSE_H
#define _RANSAC_ELLIPSE_H
#define UINT8 unsigned char
#ifndef PI
#define PI 3.141592653589
#endif
#include <vector>
using namespace std;
// CvPoint is 'integer', I need 'double'
typedef struct stuDPoint
{
double x;
double y;
}stuDPoint;
//ransac program parameters
extern stuDPoint start_point;
extern int inliers_num;
extern int angle_step;
//extern stuDPoint *edge_point;
extern int pupil_edge_thres;
extern double pupil_param[5];
extern vector <stuDPoint*> edge_point;
void get_5_random_num(int max_num, int* rand_num);
bool solve_ellipse(double* conic_param, double* ellipse_param);
int* pupil_fitting_inliers(UINT8* pupil_image, int, int, int &return_max_inliers, double maxeccentricity, double min_ellipse_area, double max_ellipse_area);
stuDPoint* normalize_edge_point(double &dis_scale, stuDPoint &nor_center, int ep_num);
void denormalize_ellipse_param(double* par, double* normailized_par, double dis_scale, stuDPoint nor_center);
void destroy_edge_point();
void starburst_pupil_contour_detection(UINT8* pupil_image, int width, int height, int edge_thresh, int N, int minimum_cadidate_features, double initial_angle_spread, double fanoutangle1, double fanoutangle2, int bouncerays, int features_per_ray, double min_feature_dist, double max_feature_dist);
void locate_edge_points(UINT8* image, int width, int height, double cx, double cy, int dis, double angle_step, double angle_normal, double angle_spread, int edge_thresh, int features_per_ray, double min_feature_dist, double max_feature_dist);
stuDPoint get_edge_mean();
stuDPoint* normalize_point_set(stuDPoint* point_set, double &dis_scale, stuDPoint &nor_center, int num);
#endif
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