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/* add_cov.c */
double I_add_covariances(int, int, double, double, double, double, double, double);
/* advance.c */
int I_tape_advance(int, int);
/* alloc.c */
void *I_malloc(int);
void *I_realloc(void *, int);
int I_free(void *);
double **I_alloc_double2(int, int);
int *I_alloc_int(int);
int **I_alloc_int2(int, int);
int I_free_int2(int **);
int I_free_double2(double **);
double ***I_alloc_double3(int, int, int);
int I_free_double3(double ***);
/* ask.c */
int I_ask(char *, char *, int);
/* ask_bands.c */
char *I_bandname(int);
char *I_bandname_prefix(void);
int I_set_band_prefix(char *);
int *I_ask_bands(int);
/* ask_colors.c */
int I_ask_ref_colors(char *, struct Ref *);
/* ask_group.c */
int I_ask_group_old(char *, char *);
int I_ask_group_new(char *, char *);
int I_ask_group_any(char *, char *);
/* ask_subgrp.c */
int I_ask_subgroup_old(char *, char *, char *);
int I_ask_subgroup_new(char *, char *, char *);
/* band_io.c */
int I_open_band_new(int);
int I_close_band(int, struct Tape_Info *, int);
/* c_assign.c */
int I_cluster_assign(struct Cluster *, int *);
/* c_begin.c */
int I_cluster_begin(struct Cluster *, int);
/* c_clear.c */
int I_cluster_clear(struct Cluster *);
/* c_distinct.c */
int I_cluster_distinct(struct Cluster *, double);
/* c_exec.c */
int I_cluster_exec(struct Cluster *, int, int, double, double, int, int (*)(), int *);
/* c_execmem.c */
int I_cluster_exec_allocate(struct Cluster *);
int I_cluster_exec_free(struct Cluster *);
/* c_means.c */
int I_cluster_means(struct Cluster *);
/* c_merge.c */
int I_cluster_merge(struct Cluster *);
/* c_nclasses.c */
int I_cluster_nclasses(struct Cluster *, int);
/* c_point.c */
int I_cluster_point(struct Cluster *, CELL *);
int I_cluster_begin_point_set(struct Cluster *, int);
int I_cluster_point_part(struct Cluster *, register CELL, int, int);
int I_cluster_end_point_set(struct Cluster *, int);
/* c_reassign.c */
int I_cluster_reassign(struct Cluster *, int *);
/* c_reclass.c */
int I_cluster_reclass(struct Cluster *, int);
/* c_sep.c */
double I_cluster_separation(struct Cluster *, int, int);
/* c_sig.c */
int I_cluster_signatures(struct Cluster *);
/* c_sum2.c */
int I_cluster_sum2(struct Cluster *);
/* colors.c */
int I_read_group_colors(char *, struct Ref *);
int I_read_group_red_colors(char *, struct Ref *);
int I_read_group_grn_colors(char *, struct Ref *);
int I_read_group_blu_colors(char *, struct Ref *);
int I_free_group_colors(struct Ref *);
int I_write_group_colors(char *, struct Ref *);
int I_write_group_red_colors(char *, struct Ref *);
int I_write_group_grn_colors(char *, struct Ref *);
int I_write_group_blu_colors(char *, struct Ref *);
/* eol.c */
int I_get_to_eol(char *, int, FILE *);
/* find.c */
int I_find_group(char *);
int I_find_group_file(char *, char *);
int I_find_subgroup(char *, char *);
int I_find_subgroup_file(char *, char *, char *);
/* fopen.c */
FILE *I_fopen_group_file_new(char *, char *);
FILE *I_fopen_group_file_append(char *, char *);
FILE *I_fopen_group_file_old(char *, char *);
FILE *I_fopen_subgroup_file_new(char *, char *, char *);
FILE *I_fopen_subgroup_file_append(char *, char *, char *);
FILE *I_fopen_subgroup_file_old(char *, char *, char *);
/* georef.c */
int I_compute_georef_equations(struct Control_Points *, double [3], double [3], double [3], double [3]);
int I_georef(double, double, double *, double *, double [3], double [3]);
/* grey.c */
int I_grey_scale(struct Histogram *, struct Colors *);
/* group.c */
int I_get_group(char *);
int I_put_group(char *);
int I_get_subgroup(char *, char *);
int I_put_subgroup(char *, char *);
int I_get_group_ref(char *, struct Ref *);
int I_get_subgroup_ref(char *, char *, struct Ref *);
int I_init_ref_color_nums(struct Ref *);
int I_put_group_ref(char *, struct Ref *);
int I_put_subgroup_ref(char *, char *, struct Ref *);
int I_add_file_to_group_ref(char *, char *, struct Ref *);
int I_transfer_group_ref_file(struct Ref *, int, struct Ref *);
int I_init_group_ref(struct Ref *);
int I_free_group_ref(struct Ref *);
/* histo.c */
int I_get_histogram(char *, char *, struct Histogram *);
/* histo_eq.c */
int I_histo_eq(struct Histogram *, unsigned char **, CELL *, CELL *);
/* image.c */
int I_image_colors(struct Ref *, unsigned char *, unsigned char *, unsigned char *);
int I_open_image(struct Ref *);
int I_get_image_row(struct Ref *, int);
int I_translate_image_data(CELL *, unsigned char *, register CELL, register CELL, unsigned char *, int);
int I_close_image(struct Ref *);
/* list_gp.c */
int I_list_group(char *, struct Ref *, FILE *);
/* list_subgp.c */
int I_list_subgroup(char *, char *, struct Ref *, FILE *);
/* loc_info.c */
int I_location_info(char *, char *);
/* ls_groups.c */
int I_list_groups(int);
int I_list_subgroups(char *, int);
/* nfiles.c */
int I_number_of_group_ref_files(char *);
int I_number_of_subgroup_ref_files(char *, char *);
/* open.c */
int I_open_group_file_new(char *, char *);
int I_open_group_file_old(char *, char *);
/* percent.c */
int I_percent(int, int, int);
/* points.c */
int I_read_control_points(FILE *, struct Control_Points *);
int I_new_control_point(struct Control_Points *, double, double, double, double, int);
int I_write_control_points(FILE *, struct Control_Points *);
int I_get_control_points(char *, struct Control_Points *);
int I_put_control_points(char *, struct Control_Points *);
/* proj.c */
int I_must_be_imagery_projection(void);
/* ref.c */
FILE *I_fopen_group_ref_new(char *);
FILE *I_fopen_group_ref_old(char *);
FILE *I_fopen_subgroup_ref_new(char *, char *);
FILE *I_fopen_subgroup_ref_old(char *, char *);
/* set_window.c */
int I_set_window(int, int, int, int);
/* sig.c */
int I_init_signatures(struct Signature *, int);
int I_new_signature(struct Signature *);
int I_free_signatures(struct Signature *);
int I_read_one_signature(FILE *, struct Signature *);
int I_read_signatures(FILE *, struct Signature *);
int I_write_signatures(FILE *, struct Signature *);
/* sig2cats.c */
int I_signature_to_cats(struct Signature *, struct Categories *);
/* sigfile.c */
int I_ask_signature_file_any(char *, char *, char *, char *);
int I_ask_signature_file_old(char *, char *, char *, char *);
FILE *I_fopen_signature_file_new(char *, char *, char *);
FILE *I_fopen_signature_file_old(char *, char *, char *);
/* sigset.c */
int I_SigSetNClasses(struct SigSet *);
struct ClassData *I_AllocClassData(struct SigSet *, struct ClassSig *, int);
int I_InitSigSet(struct SigSet *);
int I_SigSetNBands(struct SigSet *, int);
struct ClassSig *I_NewClassSig(struct SigSet *);
struct SubSig *I_NewSubSig(struct SigSet *, struct ClassSig *);
int I_ReadSigSet(FILE *, struct SigSet *);
int I_SetSigTitle(struct SigSet *, char *);
char *I_GetSigTitle(struct SigSet *);
int I_SetClassTitle(struct ClassSig *, char *);
char *I_GetClassTitle(struct ClassSig *);
int I_WriteSigSet(FILE *, struct SigSet *);
/* sigsetfile.c */
int I_ask_sigset_file_any(char *, char *, char *, char *);
int I_ask_sigset_file_old(char *, char *, char *, char *);
FILE *I_fopen_sigset_file_new(char *, char *, char *);
FILE *I_fopen_sigset_file_old(char *, char *, char *);
/* tape_info.c */
int I_clear_tape_info(struct Tape_Info *);
int I_edit_tape_info(struct Tape_Info *);
/* target.c */
int I_get_target(char *, char *, char *);
int I_put_target(char *, char *, char *);
/* title.c */
int I_get_group_title(char *, char *, int);
int I_put_group_title(char *, char *);
/* v_exec.c */
int I_v_exec(void);
/* var.c */
double I_variance(double, double, int);
double I_stddev(double, double, int);
/* vask_group.c */
int I_vask_group_new(char **, char *, char *);
int I_vask_group_old(char **, char *, char *);
int I_vask_subgroup_new(char **, char *, char *, int, char *);
int I_vask_subgroup_old(char **, char *, char *, int, char *);
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