Manual Pages for UNIX Operating System command usage for man mlib_ImageAffineTable

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_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 transforma-
     tion 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 desti-
     nation 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  dif-
     ferent 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.



SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions           mlib_ImageAffineTable(3MLIB)



     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  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | 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 5.11           Last change: 2 Mar 2007                    2