-ImageFile& proj_reconst (ImageFile& im, RAYSUM *rs, const FilterType filt_type, double filt_param, InterpolationType interp_type, int interp_param, const BackprojType backproj_type, int const ir_trace);
-
-/* From bproj.cpp */
-void backproj_init (const RAYSUM *rs, ImageFile& im, const BackprojType bproj_method);
-int backproj_calc (const RAYSUM *rs, ImageFile& im, const double *t, const double view_angle, const int interp_type, const int bproj_method);
-void backproj_term (const RAYSUM *rs, ImageFile& im, const int bproj_method);
-
-void backproj_init_trig (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_trig (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_trig (const RAYSUM *rs, ImageFile& im);
-void backproj_init_table (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_table (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_table (const RAYSUM *rs, ImageFile& im);
-void backproj_init_d (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_d (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_d (const RAYSUM *rs, ImageFile& im);
-void backproj_init_d2 (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_d2 (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_d2 (const RAYSUM *rs, ImageFile& im);
-void backproj_init_id (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_id (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_id (const RAYSUM *rs, ImageFile& im);
-void backproj_init_id2 (const RAYSUM *rs, ImageFile& im);
-int backproj_calc_id2 (const RAYSUM *rs, ImageFile& im, const double *t,
- const double view_angle, const int interp_type);
-void backproj_term_id2 (const RAYSUM *rs, ImageFile& im);