mediaLib Library Functions mlib_ImageScalarBlend_Fp(3MLIB)
NAME
mlib_ImageScalarBlend_Fp - image blending with scalar
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_ImageScalarBlend_Fp(mlib_image *dst,
const mlib_image *src1, const mlib_image *src2, const mlib_d64 *alpha);
DESCRIPTION
The mlib_ImageScalarBlend_Fp() function blends the first and
second floating-point 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 which should be in the [0.0, 1.0] range. 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_Fp(3MLIB)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageScalarBlend(3MLIB),
mlib_ImageScalarBlend_Fp_Inp(3MLIB),
mlib_ImageScalarBlend_Inp(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2