Manual Pages for UNIX Operating System command usage for man mlib_ImageZoomTranslateTable

mediaLib Library Functions    mlib_ImageZoomTranslateTable(3MLIB)



NAME
     mlib_ImageZoomTranslateTable - zoom, with translation,  with
     table-driven interpolation

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

     mlib_status mlib_ImageZoomTranslateTable(mlib_image *dst,
          const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy,
          mlib_d64 tx, mlib_d64 ty, const void *interp_table,
          mlib_edge edge);


DESCRIPTION
     The mlib_ImageZoomTranslateTable() function will enlarge  or
     minify  the  source  image by the X and Y zoom factors, with
     translation. It uses a table, interp_table, to do interpola-
     tion.


     It uses the following equation for coordinate mapping:

       xd = zoomx*xs + tx
       yd = zoomy*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.




SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions    mlib_ImageZoomTranslateTable(3MLIB)



     zoomx           X zoom factor. zoomx > 0.


     zoomy           Y zoom factor. zoomy > 0.


     tx              X translation.


     ty              Y translation.


     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_EXTEND_INDEF
                       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_ImageZoomTranslateTable_Fp(3MLIB),



SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions    mlib_ImageZoomTranslateTable(3MLIB)



     mlib_ImageZoomTranslate(3MLIB),
     mlib_ImageZoomTranslate_Fp(3MLIB), attributes(5)





















































SunOS 5.11           Last change: 2 Mar 2007                    3