mediaLib Library Functions           mlibImageAffineTable(3MLIB)



NAME
     mlibImageAffineTable - affine transformation  on  an  image
     with table-driven interpolation

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlibstatus mlibImageAffineTable(mlibimage *dst, const mlibimage *src,
          const mlibd64 *mtx, const void *interptable, mlibedge edge);


DESCRIPTION
     The mlibImageAffineTable() 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  MLIBYTE,  MLIBSHORT,
     MLIBUSHORT, or MLIBINT.


     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           mlibImageAffineTable(3MLIB)



     interptable    Pointer to an interpolation table. The table
                     is          created          by          the
                     mlibImageInterpTableCreate() function.


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

                       MLIBEDGEDSTNOWRITE
                       MLIBEDGEDSTFILZERO
                       MLIBEDGEOPNEAREST
                       MLIBEDGESRCEXTEND
                       MLIBEDGESRCPADED



RETURN VALUES
     The function returns MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibImageInterpTableCreate(3MLIB),
     mlibImageInterpTableDelete(3MLIB),
     mlibImageAffineTableFp(3MLIB),    mlibImageAffine(3MLIB),
     mlibImageAffineFp(3MLIB), attributes(5)















SunOS 5.11           Last change: 2 Mar 2007                    2