fmi_image_filter.h

 
/* THIS LIBRARY CONTAINS IMAGE PROCESSING OPERATIONS FOR GENERAL PURPOSE */
/* radar images, satellite images why not ... */
 
/* #define UNVISITED 255 */
#define VISITED 1
 
/*
  #include "fmi_image_filter_speck.h"
  #include "fmi_image_filter_line.h"
  #include "fmi_image_filter_texture.h"
*/
 
void detect_horz_gradient(FmiImage *source,FmiImage *trace);
void detect_vert_gradient(FmiImage *source,FmiImage *trace);
 
/* LOCAL MAXIMA */
void detect_horz_maxima(FmiImage *source,FmiImage *trace);
void detect_horz_maxima2(FmiImage *source,FmiImage *trace); /* normalized */
void detect_horz_edges(FmiImage *source,FmiImage *trace);
 
/*/ Finds local maxima, magnitude defined as the lower difference to neighbouring intensities. */
void detect_vert_maxima(FmiImage *source,FmiImage *trace); /* MP changed 2010: zeros also written. */
 
void detect_vert_maxima2(FmiImage *source,FmiImage *trace);
void detect_vert_edges(FmiImage *source,FmiImage *trace);
 
/* INFINITE INPULSE RESPONSE FILTERS */
/* simple */
void iir_left(FmiImage *source,FmiImage *trace,int promille);
void iir_right(FmiImage *source,FmiImage *trace,int promille);
void iir_up(FmiImage *source,FmiImage *trace,int promille);
void iir_down(FmiImage *source,FmiImage *trace,int promille);
 
/* In source, change pixels (i,j) with mask(i,j) < threshold to c */
void mask_image(FmiImage *source,FmiImage *mask,Byte threshold,Byte c);
 
void threshold_image(FmiImage *source,FmiImage *target,Byte threshold);
void binarize_image(FmiImage *source,FmiImage *target,Byte threshold);
/*void high_boost(FmiImage *source,FmiImage *target,Byte threshold); */
 
/* Propagate = spread MAX information within a speck or segment */
/*  source = information, as byte values; or NULL -> byte=0  */
/*  domain = area {(x,y)|f(x,y)>0} inside which information is spread */
/*  target = target image */
/*  slope  = slope for increasing/decreasing byte value */
/* Typically, threshold is applied first. */
 
void propagate_right(FmiImage *source,FmiImage *domain,FmiImage *target, signed char slope,void (* put_func)(FmiImage *,int,int,int,Byte));
void propagate_left(FmiImage *source,FmiImage *domain,FmiImage *target, signed char slope,void (* put_func)(FmiImage *,int,int,int,Byte));
void propagate_horz(FmiImage *source,FmiImage *domain,FmiImage *target, signed char slope,void (* put_func)(FmiImage *,int,int,int,Byte));
void propagate_up(FmiImage *source,FmiImage *domain,FmiImage *target, signed char slope,void (* put_func)(FmiImage *,int,int,int,Byte));
void propagate_down(FmiImage *source,FmiImage *domain,FmiImage *target, signed char slope,void (* put_func)(FmiImage *,int,int,int,Byte));
 
void horz_seg_lengths(FmiImage *source,FmiImage *target);
void vert_seg_lengths(FmiImage *source,FmiImage *target);
 
void row_statistics(FmiImage *source,Byte *nonzero,Byte *sum,Byte *sum2);
void col_statistics(FmiImage *source,Byte *nonzero,Byte *sum,Byte *sum2);