#ifndef SEGMENT_H
#define SEGMENT_H

#define FW 160
#define FH 120

#define DW 110
#define DH 90

#define MAX_B 100
#define BB 16

/* threshold to segment a human */
#define DEPTH_HIGH 36
#define DEPTH_LOW 15


typedef struct noname1 {
  int left, top;
  int nrows, ncols;
  unsigned char *buf;
} Block;

void segment (unsigned char *p,unsigned char *s, Block * b[MAX_B], int * bn);
void histogram (unsigned char *p, unsigned char histo[64]);
void save2file (unsigned char *p, int nrows, int ncols, char fn[50]);
void readfile (unsigned char *p, int nrows, int ncols, char fn[50]);
void block_seg (unsigned char *buf, int nrows, int ncols,unsigned char *left, 
		Block * block[MAX_B], int * bn);
void block_seg1 (unsigned char *buf, int nrows, int ncols,unsigned char *left, 
		Block * block[MAX_B], int * bn);
void topo_filter (unsigned char *p, int nrows, int ncols);
void binarize (unsigned char *in, int nrows, int ncols, int t_low, int t_high);

void fill_block (unsigned char *left_buf, Block * block);

#endif