NAME
hist_thresh_segment - a thresholding-of-histogram segmenta-
tion technique
SYNOPSIS
#include "CVIPtoolkit.h"
#include "CVIPdef.h"
#include "hist_thresh.h"
Image *hist_thresh_segment(Image *imgP)
<imgP> - pointer to Image structure
Image *hist_thresh_gray(Image *imgP)
<imgP> - pointer to Image structure
PATH
$CVIPHOME/SEGMENTATION/hist_thresh.c
DESCRIPTION
hist_thresh_gray segments a grayscale image using a
thresholding-of-histogram segmentation technique to split
image regions recursively. hist_thresh_segment is a driver
of hist_thresh_gray. Especially, if the input image is
multi-band, hist_thresh_segment first uses the Principal
Components Transform (PCT) to map the maximum information
into one image plane, then calls hist_thresh_gray.
TYPES AND CONSTANTS
typedef struct {
int lower;
int peak;
int upper;
} PeakObject;
RETURN VALUES
Returns Image pointer upon successful completion, and
returns NULL on failure.
EXAMPLE
#include "CVIPtoolkit.h"
#include "CVIPdef.h"
#include "CVIPconvert.h"
#include "hist_thresh.h"
void main()
{
Image *cvipImage;
IMAGE_FORMAT format;
char *inputfile, *outputfile;
setDisplay_Image("picture", "Default");
print_CVIP("\n\t\tEnter the Input File Name: ");
inputfile =(char *) getString_CVIP();
format = getFormat_CVIP(inputfile);
cvipImage = read_Image(inputfile, 1);
view_Image(cvipImage, inputfile);
cvipImage = hist_thresh_segment(cvipImage);
print_CVIP("\n\t\tEnter the Output File Name: ");
outputfile = getString_CVIP();
view_Image(cvipImage, outputfile);
write_Image(cvipImage,outputfile,CVIP_NO,CVIP_NO,format,1);
free(inputfile);
free(outputfile);
}
BUGS
None at this time
SEE ALSO
libsegment
AUTHOR
Copyright (C) 1995 SIUE - by Scott Umbaugh and Greg Hance.