cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageScalarBlend_Fp(mlib_image *dst, const mlib_image *src1, const mlib_image *src2, const mlib_d64 *alpha);
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]
The function takes the following arguments:
Pointer to destination image.
Pointer to first source image.
Pointer to second source image.
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.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes: