int process_image(int filenum);
long set_time(long delay);
int scale_rgb(int r,int g,int b);
char change_range(int *img,int *c,int *speed);
int plot_Range(int xc,int yc,int *c,int on);
char set_point(float *point,float *speed);
int set_Range(float *point,int *c);
int load_Fhist(char *type,int *c);
int plot_image(int img,int xc,int yc,int base,int color);
int print_range(int r,int g,int b,float *point,int iop);
int scale(int img);
int make_cmg_image(int r,int g,int b,int sample,char *name);
int load_quick_color_image(int r,int g,int b);
int plot_full_qc_image(int sample,int r,int g,int b,int qr,int qg,int qb);
int scroll_any_list(int xc,int yc,int xs,int ys,
		char *string[],int num,char *out_string,
		int menu,int cursor,int box,int highlight,int base);
int histo(int xc,int yc,int xs,int ys,
		int bxc,int byc,int bxs,int bys,int val,int img);
int add_disk_path(char *string);
int open_image(FILE *fp,int filenum);
int rescale_image(void);
int shade(int img,int scale);
int plot_vectors(void);
int graph_locate(int *x,int *y,int *speed);
int get_xy(int *x,int *y,int *speed,int *imgx,int *imgy);
int video_off(void);
int pixel_locate(int *x,int *y,int *speed,int img);
double clat(double x,double y);
double clon(double x,double y);
double cy(double lat,double lon);
double cx(double lat,double lon);
int change_color(void);
int load_image(int filenum);
int screen_mm(void);
int plot_sub_image(FILE *fp,int sample,int filenum);
int plot_full_image(FILE *fp,int sample,int filenum);
int limit_area_fixed(int *xc,int *yc,int *xs,int *ys,int *speed,int *sample);
int read_lbl(char *label,int filenum);
int xy_ll(double x,double y,double *lat,double *lon);
int ll_xy(double *x,double *y,double lat,double lon);
int copy_hdr(int d,int s);
int set_lut(char type,char *filename);
int do_menu_buff(char *menu[],int num,int xc,int yc,
		int start,int back,int words,int boxs,int font[128][25]);
int save_sub_mem(int xc,int yc,int xs,int ys);
int recall_sub_mem(int xc,int yc,int xs,int ys);
char fsplit(char *instring,char *path,char *name,char *type);
FILE *open_to_write_text(char *name);
FILE *open_to_read_text(char *name);
FILE *open_to_write_binary(char *name);
FILE *open_to_read_binary(char *name);
                                          