Content-type: text/html Man page of mlib_ImageMean

mlib_ImageMean

Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
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NAME

mlib_ImageMean - image mean  

SYNOPSIS

cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_ImageMean(mlib_d64 *mean, const mlib_image *img);

 

DESCRIPTION

The mlib_ImageMean() function computes the mean value of all the pixels in the image.

It uses the following equation:

            1     w-1 h-1
mean[i] = ----- * SUM SUM img[x][y][i]
          w*h    x=0 y=0

 

PARAMETERS

The function takes the following arguments:

mean

Pointer to mean array, where length is the number of channels in the image. mean[i] contains the mean of channel i.

img

Pointer to an image.

 

RETURN VALUES

The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.  

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE

Interface StabilityCommitted

MT-Level

 

SEE ALSO

mlib_ImageMean_Fp(3MLIB), mlib_ImageStdDev(3MLIB), mlib_ImageStdDev_Fp(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

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Time: 02:38:04 GMT, October 02, 2010