mediaLib Library Functions                  mlibImageMean(3MLIB)



NAME
     mlibImageMean - image mean

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlibstatus mlibImageMean(mlibd64 *mean, const mlibimage *img);


DESCRIPTION
     The mlibImageMean() 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 MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:















SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions                  mlibImageMean(3MLIB)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibImageMeanFp(3MLIB),           mlibImageStdDev(3MLIB),
     mlibImageStdDevFp(3MLIB), attributes(5)











































SunOS 5.11           Last change: 2 Mar 2007                    2