mediaLib Library Functions mlibImageDivShift2Inp(3MLIB)
NAME
mlibImageDivShift2Inp - division with shifting, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlibstatus mlibImageDivShift2Inp(mlibimage *src2dst,
const mlibimage *src1, mlibs32 shift);
DESCRIPTION
The mlibImageDivShift2Inp() function divides the second
source image into the first source image on a pixel-by-pixel
basis. It scales the result by a left shift and writes the
result to the destination image on a pixel-by-pixel basis.
It uses the following equation:
src2dst[x][y][i] = src1[x][y][i] / src2dst[x][y][i] * 2**shift
In the case of src2dst[x][y][i] = 0,
src2dst[x][y][i] = 0 if src1[x][y][i] = 0
src2dst[x][y][i] = DATATYPEMAX if src1[x][y][i] > 0
src2dst[x][y][i] = DATATYPEMIN if src1[x][y][i] < 0
where DATATYPE is MLIBU8, MLIBS16, MLIBU16, or MLIBS32
for an image of type MLIBYTE, MLIBSHORT, MLIBUSHORT, or
MLIBINT, respectively.
PARAMETERS
The function takes the following arguments:
src2dst Pointer to second source and destination image.
src1 Pointer to first source image.
shift Left shifting factor. 0 < shift < 31.
RETURN VALUES
The function returns MLIBSUCES if successful. Otherwise
it returns MLIBFAILURE.
SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlibImageDivShift2Inp(3MLIB)
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Interface Stability Committed
MT-Level MT-Safe
SEE ALSO
mlibImageDivShift(3MLIB), mlibImageDivShift1Inp(3MLIB),
attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2
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