Manual Pages for UNIX Operating System command usage for man mlib_ImageScalarBlend

mediaLib Library Functions           mlib_ImageScalarBlend(3MLIB)



NAME
     mlib_ImageScalarBlend - image blending with scalar

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

     mlib_status mlib_ImageScalarBlend(mlib_image dst, const mlib_image *src1,
          const mlib_image *src2, const mlib_s32 *alpha);


DESCRIPTION
     The mlib_ImageScalarBlend() function blends  the  first  and
     second  source images by adding each of their scaled pixels.
     The first source image is scaled by the scalar  a,  and  the
     second source image is inverse scaled by (1 - a).


     It uses the following equation:

       dst[x][y][i] = a[i]*src1[x][y][i] + (1 - a[i])*src2[x][y][i]


PARAMETERS
     The function takes the following arguments:

     dst      Pointer to destination image.


     src1     Pointer to first source image.


     src2     Pointer to second source image.


     alpha    Scalar blending factor. The a value equals (alpha *
              2**(-31)).  alpha[i]  contains  the blending factor
              for channel i.


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:








SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions           mlib_ImageScalarBlend(3MLIB)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_ImageScalarBlend_Fp(3MLIB),
     mlib_ImageScalarBlend_Fp_Inp(3MLIB),
     mlib_ImageScalarBlend_Inp(3MLIB), attributes(5)










































SunOS 5.11           Last change: 2 Mar 2007                    2