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/*
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; File: convolve.h
;;; Author: Simoncelli
;;; Description: Header file for convolve.c
;;; Creation Date:
;;; ----------------------------------------------------------------
;;; Object-Based Vision and Image Understanding System (OBVIUS),
;;; Copyright 1988, Vision Science Group, Media Laboratory,
;;; Massachusetts Institute of Technology.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
*/
#include <stdio.h>
#include <stdlib.h>
#define ABS(x) (((x)>=0) ? (x) : (-(x)))
#define ROOT2 1.4142135623730951
#define REDUCE 0
#define EXPAND 1
#define IS ==
#define ISNT !=
#define AND &&
#define OR ||
typedef int (*fptr)();
typedef struct
{
char *name;
fptr func;
} EDGE_HANDLER;
typedef double image_type;
fptr edge_function(char *edges);
int internal_reduce(image_type *image, int x_idim, int y_idim,
image_type *filt, image_type *temp, int x_fdim, int y_fdim,
int x_start, int x_step, int x_stop,
int y_start, int y_step, int y_stop,
image_type *result, char *edges);
int internal_expand(image_type *image,
image_type *filt, image_type *temp, int x_fdim, int y_fdim,
int x_start, int x_step, int x_stop,
int y_start, int y_step, int y_stop,
image_type *result, int x_rdim, int y_rdim, char *edges);
int internal_wrap_reduce(image_type *image, int x_idim, int y_idim,
image_type *filt, int x_fdim, int y_fdim,
int x_start, int x_step, int x_stop,
int y_start, int y_step, int y_stop,
image_type *result);
int internal_wrap_expand(image_type *image, image_type *filt, int x_fdim, int y_fdim,
int x_start, int x_step, int x_stop,
int y_start, int y_step, int y_stop,
image_type *result, int x_rdim, int y_rdim);
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