mediaLib Library Functions mlib_ImageMean_Fp(3MLIB)
NAME
mlib_ImageMean_Fp - image mean
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_ImageMean_Fp(mlib_d64 *mean, const mlib_image *img);
DESCRIPTION
The mlib_ImageMean_Fp() 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=0PARAMETERS
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 attri-
butes:SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlib_ImageMean_Fp(3MLIB)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageMean(3MLIB), mlib_ImageStdDev(3MLIB),
mlib_ImageStdDev_Fp(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2