void EyeTracker::remove_corneal_reflection( int sx, int sy, int window_size,
int biggest_crr, int& crx, int& cry )
{
int crar = -1; //corneal reflection approximate radius
crx = cry = crar = -1;
float angle_delta = (float)(1 * PI / 180);
int angle_num = (int)(2*PI/angle_delta);
//printf("(corneal reflection) sx:%d; sy:%d\n", sx, sy);
double *angle_array = (double*)malloc(angle_num*sizeof(double));
double *sin_array = (double*)malloc(angle_num*sizeof(double));
double *cos_array = (double*)malloc(angle_num*sizeof(double));
for (int i = 0; i < angle_num; i++) {
angle_array[i] = i*angle_delta;
sin_array[i] = sin(angle_array[i]);
cos_array[i] = cos(angle_array[i]);
}
locate_corneal_reflection( sx, sy, window_size, (int)(biggest_crr/2.5), crx, cry, crar);
corneal_reflection_r = fit_circle_radius_to_corneal_reflection( crx, cry, crar, (int)(biggest_crr/2.5), sin_array, cos_array, angle_num);
corneal_reflection_r = (int)(2.5*corneal_reflection_r);
interpolate_corneal_reflection( crx, cry , sin_array, cos_array, angle_num);
free(angle_array);
free(sin_array);
free(cos_array);
}
void remove_corneal_reflection(IplImage *image, IplImage *threshold_image, int sx, int sy, int window_size, int
biggest_crr, int &crx, int &cry, int &crr, int *valid_point_calc)
{
int crar = -1; //corneal reflection approximate radius
crx = cry = crar = -1;
float angle_delta = 1*PI/180;
int angle_num = (int)(2*PI/angle_delta);
printf("(corneal reflection) sx:%d; sy:%d\n", sx, sy);
double *angle_array = (double*)malloc(angle_num*sizeof(double));
double *sin_array = (double*)malloc(angle_num*sizeof(double));
double *cos_array = (double*)malloc(angle_num*sizeof(double));
for (int i = 0; i < angle_num; i++) {
angle_array[i] = i*angle_delta;
sin_array[i] = sin(angle_array[i]);
cos_array[i] = cos(angle_array[i]);
}
locate_corneal_reflection(image, threshold_image, sx, sy, window_size, (int)(biggest_crr/2.5), crx, cry, crar, valid_point_calc);
crr = fit_circle_radius_to_corneal_reflection(image, crx, cry, crar, (int)(biggest_crr/2.5), sin_array, cos_array, angle_num, valid_point_calc);
crr = (int)(2.5*crr);
interpolate_corneal_reflection(image, crx, cry, crr, sin_array, cos_array, angle_num, valid_point_calc);
free(angle_array);
free(sin_array);
free(cos_array);
}
