Poster of Linux kernelThe best gift for a Linux geek
IM_MEAN_STD

IM_MEAN_STD

Section: C Library Functions (3) Updated: 10 May 1991
Local index Up
 

NAME

im_mean_std_double_buffer, im_mean_std_int_buffer - calculates the mean and the std of data held by a by an int or double buffer  

SYNOPSIS

#include <vips/vips.h>

int im_mean_std_int_buffer(buf, size, mean, std)
int *buf;
int size;
double *mean, *std;

int im_mean_std_double_buffer(buf, size, mean, std)
double *buf;
int size;
double *mean, *std;

 

DESCRIPTION

im_mean_std_int_buffer() and im_mean_std_double_buffer() calculate the mean and the standard deviation (std) of data held by the integer or double buffer buf. The buffer has size elements. The results are returned to the locations pointed by mean and std. It is the responsibility of the calling function to ensure that there is enough data in the buffer.  

RETURN VALUE

Both functions returns 0 on success and -1 on error.  

SEE ALSO

im_avg(3), im_stats(3).  

COPYRIGHT


N. Dessipris  

AUTHOR

N. Dessipris - 10/05/1991


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
COPYRIGHT
AUTHOR

This document was created by man2html, using the manual pages.
Time: 21:48:22 GMT, April 16, 2011