mediaLib Library Functions mlib_ImageConstMulShift_Inp(3MLIB)
NAME
mlib_ImageConstMulShift_Inp - multiply with a constant, with
shiftingSYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_ImageConstMulShift_Inp(mlib_image *srcdst,
const mlib_s32 *c, mlib_s32 shift);
DESCRIPTION
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 theresult 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)
PARAMETERS
The function takes the following arguments: srcdst Pointer to source and destination image. c Constant by which each pixel is multiplied. c[i] contains the constant for channel i. shift Right shifting factor. 0 < shift < 31.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_ImageConstMulShift_Inp(3MLIB)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageConstMul(3MLIB), mlib_ImageConstMul_Fp(3MLIB),
mlib_ImageConstMul_Fp_Inp(3MLIB),
mlib_ImageConstMul_Inp(3MLIB),
mlib_ImageConstMulShift(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2