linuxworld

mlib_ImageMoment2(3MLIB)				    mediaLib Library Functions					  mlib_ImageMoment2(3MLIB)

NAME

       mlib_ImageMoment2 - second moment

SYNOPSIS

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

       mlib_status mlib_ImageMoment2(mlib_d64 *moment, const mlib_image *img);

DESCRIPTION

       The mlib_ImageMoment2() function computes the second moment of each channel in an image.

       It uses the following equation:

		     1	   w-1 h-1
       moment[i] = ----- * SUM SUM img[x][y][i]**2
		    w*h    x=0 y=0

PARAMETERS

       The function takes the following arguments:

       moment	       Pointer to moment array, where length is the number of channels in the image.

       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 TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageMoment2_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 					  mlib_ImageMoment2(3MLIB)