mlib_ImageAffineTable(3MLIB)				    mediaLib Library Functions				      mlib_ImageAffineTable(3MLIB)

NAME

       mlib_ImageAffineTable - affine transformation on an image with table-driven interpolation

SYNOPSIS

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

       mlib_status mlib_ImageAffineTable(mlib_image *dst, const mlib_image *src, const mlib_d64 *mtx, const void *interp_table, mlib_edge edge);

DESCRIPTION

       The mlib_ImageAffineTable() function does affine transformation on an image with table-driven interpolation.

       The following equation represents the affine transformation:

       xd = a*xs + b*ys + tx
       yd = c*xs + d*ys + ty

       where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image.

       The data type of the images can be MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT.

       The width and height of the destination image can be different from the width and height of the source image.

       The center of the upper-left corner pixel of an image is located at (0.5, 0.5).

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       mtx	       Transformation matrix.  mtx[0] holds a; mtx[1] holds b; mtx[2] holds tx; mtx[3] holds c; mtx[4] holds d; mtx[5] holds ty.

       interp_table    Pointer to an interpolation table. The table is created by the mlib_ImageInterpTableCreate() function.

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

		       MLIB_EDGE_DST_NO_WRITE
		       MLIB_EDGE_DST_FILL_ZERO
		       MLIB_EDGE_OP_NEAREST
		       MLIB_EDGE_SRC_EXTEND
		       MLIB_EDGE_SRC_PADDED

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_ImageInterpTableCreate(3MLIB),     mlib_ImageInterpTableDelete(3MLIB),    mlib_ImageAffineTable_Fp(3MLIB),	  mlib_ImageAffine(3MLIB),
       mlib_ImageAffine_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				      mlib_ImageAffineTable(3MLIB)