Manual Pages for UNIX Operating System command usage for man mlib_ImageZoomOut2XIndex

mediaLib Library Functions        mlib_ImageZoomOut2XIndex(3MLIB)



NAME
     mlib_ImageZoomOut2XIndex - 0.5X zoom

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

     mlib_status mlib_ImageZoomOut2XIndex(mlib_image *dst,
          const mlib_image *src, mlib_filter filter, mlib_edge edge,
          const void *colormap);


DESCRIPTION
     The mlib_ImageZoomOut2XIndex() function minifies the  source
     image  by  a factor of two. It uses the interpolation method
     as described by the resampling filter.


     The image data type must be MLIB_BYTE or MLIB_SHORT.


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


     The width and height of the destination image  can  be  dif-
     ferent from those of the source image.


     The center of the source image is mapped onto the center  of
     the destination image.

PARAMETERS
     The function takes the following arguments:

     dst         Pointer to destination image.


     src         Pointer to source image.


     filter      Type of resampling filter. It can be one of  the
                 following:

                   MLIB_NEAREST
                   MLIB_BILINEAR
                   MLIB_BICUBIC
                   MLIB_BICUBIC2







SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions        mlib_ImageZoomOut2XIndex(3MLIB)



     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



     colormap    Internal data structure for inverse  color  map-
                 ping.  This  data  structure is generated by the
                 mlib_ImageColorTrue2IndexInit() function.


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_ImageZoom(3MLIB),             mlib_ImageZoom_Fp(3MLIB),
     mlib_ImageZoomIn2X(3MLIB),     mlib_ImageZoomIn2X_Fp(3MLIB),
     mlib_ImageZoomIn2XIndex(3MLIB),  mlib_ImageZoomIndex(3MLIB),
     mlib_ImageZoomOut2X(3MLIB),   mlib_ImageZoomOut2X_Fp(3MLIB),
     attributes(5)














SunOS 5.11           Last change: 2 Mar 2007                    2