mlib_ImageScale2_Inp(3MLIB) mediaLib Library Functions mlib_ImageScale2_Inp(3MLIB)
NAME
mlib_ImageScale2_Inp - linear scaling, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageScale2_Inp(mlib_image *srcdst, const mlib_d64 *alpha, const mlib_d64 *beta);
DESCRIPTION
The mlib_ImageScale2_Inp() function performs an in-place linear scaling on the pixels of the source image by multiplying the data by a
scale factor and then adding an offset. Images can have 1, 2, 3, or 4 channels.
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 respectively.
The image can be of type MLIB_BYTE, MLIB_SHORT, MLIB_USHORT or MLIB_INT.
PARAMETERS
The function takes the following arguments:
srcdst Pointer to source and destination image.
alpha Scaling factor. alpha[i] contains the scaling factor 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
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
mlib_ImageScale(3MLIB), mlib_ImageScale_Fp(3MLIB), mlib_ImageScale_Fp_Inp(3MLIB), mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB),
attributes(5)
SunOS 5.10 10 Nov 2004 mlib_ImageScale2_Inp(3MLIB)
