mediaLib Library Functions mlib_ImageScale_Fp_Inp(3MLIB)
NAME
mlib_ImageScale_Fp_Inp - linear scaling, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_ImageScale_Fp_Inp(mlib_image *srcdst,
const mlib_d64 *alpha, const mlib_d64 *beta);
DESCRIPTION
The mlib_ImageScale_Fp_Inp() function performs a floating-
point, in-place linear scaling on the pixels of the source
image by multiplying the data by a scale factor, shifting, and then adding an offset. The following equation is used: srcdst[x][y][i] = srcdst[x][y][i] * alpha[i] + beta[i] If the result of the operation underflows/overflows the minimum/maximum value supported by the destination image,then it will be clamped to the minimum/maximum value respec-
tively.The image can be of type MLIB_FLOAT or MLIB_DOUBLE.
PARAMETERS
The function takes the following arguments: srcdst Pointer to source and destination image.alpha Scaling factor. alpha[i] contains the scaling fac-
tor for channel i. beta Offset value. beta[i] contains the offset for channel i.RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise
it returns MLIB_FAILURE.
ATTRIBUTES
SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlib_ImageScale_Fp_Inp(3MLIB)
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageScale(3MLIB), mlib_ImageScale_Fp(3MLIB),
mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB),
mlib_ImageScale2_Inp(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2