sunos man page for mlib_imagecrosscorrel

mlib_ImageCrossCorrel(3MLIB)											      mlib_ImageCrossCorrel(3MLIB)

NAME
       mlib_ImageCrossCorrel - cross correlation

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

       mlib_status mlib_ImageCrossCorrel(mlib_d64 *correl, const mlib_image *img1, const mlib_image *img2);

       The mlib_ImageCrossCorrel() function computes the cross-correlation between a pair of images.

       It uses the following equation:

		     1	   w-1 h-1
       correl[i] = ----- * SUM SUM (img1[x][y][i] * img2[x][y][i])
		    w*h    x=0 y=0

       where w and h are the width and height of the images, respectively.

       The function takes the following arguments:

       correl	       Pointer	to  cross  correlation	array on a channel basis. The array must be the size of channels in the images.  correl[i]
		       contains the cross-correlation of channel i.

       img1	       Pointer to first image.

       img2	       Pointer to second image.

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

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

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

       mlib_ImageAutoCorrel(3MLIB),	mlib_ImageAutoCorrel_Fp(3MLIB),     mlib_ImageCrossCorrel_Fp(3MLIB),	 mlib_ImageNormCrossCorrel(3MLIB),
       mlib_ImageNormCrossCorrel_Fp(3MLIB), attributes(5)

								    20 Apr 2005 				      mlib_ImageCrossCorrel(3MLIB)