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THRESMLAPPLY
Section: C Library Functions (3)
Updated: 16 Mar 1998
Index
NAME
thresMlApply, thresMlAppScale, thresMlAppMean,thresMlAppMedian - routines that applies ml-thresholds.
SYNTAX
#include <
xite/thresMl.h>
int thresMlAppScale( IBAND inband,
IBAND outband, int* thresholds, int nt,
double scale );
int thresMlAppMean( IBAND inband,
IBAND outband, int* thresholds, int nt,
histogram histo );
int thresMlAppMedian( IBAND inband,
IBAND outband, int* thresholds, int nt,
histogram histo );
DESCRIPTION
The
thresMlApplyroutines apply a vector of thresholds(Multi-Level threshold) to a band
inbandgiving
outband.inbandand
outbandmay be identical.
thresMlAppScalegives all pixels below the first thresholdvalue 0, all pixels between the first and the second: scale,then 2*scale,...If scaleis too large (scale>255*nt)it is adjusted down to fit.
thresMlAppMeansets all pixels between two thresholdsto the mean of all these pixels in the input band.
thresMlAppMediansets all pixels between two thresholdsto the median of all these pixels in the input band.
ntis the number of thresholds.thresholdsis the vector of thresholds, indexable on 0..nt-1.scaleis the scale factor. histois the histogram ofinband.
RESTRICTIONS
inbandand
outbandmust have pixel type unsigned byte.
SEE ALSO
thresMl(1),
histoCentroid(3),
thresMlCentroid(3),
thresMlCentroid(1),
mkComCur(3),
thresMlComCur(3),
thresMlComCur(1),
thresMlReddi(3),
thresMlReddi(1),
thresMlWaHa(3),
thresMlWaHa(1)
RETURN VALUE
0 : Ok
1 : Bad input pixel type
2 : Bad output pixel type
3 : nt is smaller than 1
4 : scale is negative
AUTHOR
Tor Lønnestad, BLAB, Ifi, UiO
ID
$Id: thresMlApply.c,v 1.18 1997/01/14 13:05:12 svein Exp $
Index
- NAME
- SYNTAX
- DESCRIPTION
- RESTRICTIONS
- SEE ALSO
- RETURN VALUE
- AUTHOR
- ID
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