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mlib_imageautocorrel_fp(3mlib) [opensolaris man page]

mlib_ImageAutoCorrel_Fp(3MLIB)				    mediaLib Library Functions				    mlib_ImageAutoCorrel_Fp(3MLIB)

mlib_ImageAutoCorrel_Fp - auto-correlation of an image SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageAutoCorrel_Fp(mlib_d64 *correl, const mlib_image *img, mlib_s32 dx, mlib_s32 dy); DESCRIPTION
The mlib_ImageAutoCorrel_Fp() function computes the auto-correlation of a floating-point image, given an offset. It uses the following equation: 1 w-dx-1 h-dy-1 correl[i] = -------------- * SUM SUM (img[x][y][i] * img[x+dx][y+dy][i]) (w-dx)*(h-dy) x=0 y=0 where w and h are the width and height of the image, respectively. PARAMETERS
The function takes the following arguments: correl Pointer to auto-correlation array where size is equal to the number of channels. correl[i] contains the auto-correlation of chan- nel i. img Pointer to image. dx Displacement in the X direction. dy Displacement in the Y direction. 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 |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageAutoCorrel(3MLIB), mlib_ImageCrossCorrel(3MLIB), mlib_ImageCrossCorrel_Fp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageAutoCorrel_Fp(3MLIB)

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