bin_ki

Name

bin_ki, kittler_threshold - binarize a gray-scale band using Kittler and Illingworth`s method

Syntax

 #include <xite/binarize.h>

 int bin_ki( IBAND inband, IBAND outband );
 int kittler_threshold( IBAND inband,
    double* mu_1, double* mu_2, double* mu );

Description

bin_ki binarizes inband using the global method of Kittler and Illingworth. The result is returned in outband.

kittler_threshold returns Kittler and Illingworth`s threshold for inband. The total mean mu and the two cluster means mu1 and mu2 are calculated.

Files

src/binarize/bin_ki.c

References

Josef Kittler & John Illingworth: "Minimum error thresholding", Pattern Recognition, vol 19, pp 41-47, 1986.

Return value

 bin_ki            : 0 - OK
 kittler_threshold : Kittler and Illingworth`s
                     threshold is returned.

Restrictions

inband and outband must have pixel type unsigned byte.

Author

Řivind Due Trier

Id

$Id: bin_ki.c,v 1.17 1997/01/14 15:46:51 svein Exp $