sunos man page for mlib_imageconv3x3_fp

mlib_ImageConv3x3_Fp(3MLIB)				    mediaLib Library Functions				       mlib_ImageConv3x3_Fp(3MLIB)

NAME
       mlib_ImageConv3x3_Fp - 3x3 convolution

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

       mlib_status mlib_ImageConv3x3_Fp(mlib_image *dst, const mlib_image *src, const mlib_d64 *kernel, mlib_s32 cmask, mlib_edge edge);

DESCRIPTION
       The mlib_ImageConv3x3_Fp() function performs a floating-point 3x3 convolution on the source image by using the user-supplied kernel.

       The  input  image  and  the output image must have the same image type and have the same number of channels. The unselected channels in the
       output image are not overwritten. For single-channel images, the channel mask is ignored.

       For this convolution, the key element of the convolution kernel is located at the center of the kernel matrix.

       It uses the following equation:

		      m-1-dm n-1-dn
       dst[x][y][i] =  SUM    SUM  src[x+p][y+q][i]*k[p][q]
		      p=-dm  q=-dn

       where m = 3, n = 3, dm = (m - 1)/2 = 1, dn = (n - 1)/2 = 1.

PARAMETERS
       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       kernel	       Pointer to the convolution kernel, in row major order.

       cmask	       Channel mask to indicate the channels to be convolved, each bit of which represents a channel in the  image.  The  channels
		       corresponding to bits with a value of 1 are those to be processed. For a single-channel image, the channel mask is ignored.

       edge	       Type of edge condition. It can be one of the following:

		       MLIB_EDGE_DST_NO_WRITE
		       MLIB_EDGE_DST_FILL_ZERO
		       MLIB_EDGE_DST_COPY_SRC
		       MLIB_EDGE_SRC_EXTEND

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_ImageConv2x2(3MLIB),     mlib_ImageConv2x2_Fp(3MLIB),     mlib_ImageConv2x2Index(3MLIB),	 mlib_ImageConv3x3(3MLIB),     mlib_Image-
       Conv3x3Index(3MLIB),  mlib_ImageConv4x4(3MLIB),	 mlib_ImageConv4x4_Fp(3MLIB),	mlib_ImageConv4x4Index(3MLIB),	 mlib_ImageConv5x5(3MLIB),
       mlib_ImageConv5x5_Fp(3MLIB),	mlib_ImageConv5x5Index(3MLIB),	  mlib_ImageConv7x7(3MLIB),    mlib_ImageConv7x7_Fp(3MLIB),    mlib_Image-
       Conv7x7Index(3MLIB),  mlib_ImageConvKernelConvert(3MLIB),   mlib_ImageConvMxN(3MLIB),   mlib_ImageConvMxN_Fp(3MLIB),   mlib_ImageConvMxNIn-
       dex(3MLIB),   mlib_ImageConvolveMxN(3MLIB),   mlib_ImageConvolveMxN_Fp(3MLIB),	mlib_ImageSConv3x3(3MLIB),   mlib_ImageSConv3x3_Fp(3MLIB),
       mlib_ImageSConv5x5(3MLIB), mlib_ImageSConv5x5_Fp(3MLIB), mlib_ImageSConv7x7(3MLIB), mlib_ImageSConv7x7_Fp(3MLIB), mlib_ImageSConvKernelCon-
       vert(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				       mlib_ImageConv3x3_Fp(3MLIB)