mlib_ImageConstMulShift_Inp - multiply with a constant, with shifting
cc [ flag... ] file... –lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageConstMulShift_Inp(mlib_image *srcdst,
const mlib_s32 *c, mlib_s32 shift);
The mlib_ImageConstMulShift_Inp() function multiplies each pixel in an image by a constant value on a pixel-by-pixel basis. It scales the result by a right shift and writes the result to the destination image on a pixel-by-pixel basis.
It uses the following equation:
srcdst[x][y][i] = c[i] * srcdst[x][y][i] * 2**(-shift)
The function takes the following arguments:
Pointer to source and destination image.
Constant by which each pixel is multiplied. c[i] contains the constant for channel i.
Right shifting factor. 0 ≤ shift ≤ 31.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
|
mlib_ImageConstMul(3MLIB), mlib_ImageConstMul_Fp(3MLIB), mlib_ImageConstMul_Fp_Inp(3MLIB), mlib_ImageConstMul_Inp(3MLIB), mlib_ImageConstMulShift(3MLIB), attributes(5)