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man page for mlib_imagedivconstshift_inp

mlib_ImageDivConstShift_Inp(3MLIB)			    mediaLib Library Functions				mlib_ImageDivConstShift_Inp(3MLIB)

mlib_ImageDivConstShift_Inp - division by a constant, with shifting SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageDivConstShift_Inp(mlib_image *srcdst, const mlib_s32 *c, mlib_s32 shift); DESCRIPTION
The mlib_ImageDivConstShift_Inp() function divides each pixel in an image by a constant value on a pixel-by-pixel basis, in place. It scales the result by a left shift and writes the result to the image on a pixel-by-pixel basis. It uses the following equation: srcdst[x][y][i] = srcdst[x][y][i] / c[i] * 2**shift In the case of c[i] = 0, srcdst[x][y][i] = 0 if srcdst[x][y][i] = 0 srcdst[x][y][i] = DATA_TYPE_MAX if srcdst[x][y][i] > 0 srcdst[x][y][i] = DATA_TYPE_MIN if srcdst[x][y][i] < 0 where DATA_TYPE is MLIB_U8, MLIB_S16, MLIB_U16, or MLIB_S32 for an image of type MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT, respec- tively. PARAMETERS
The function takes the following arguments: srcdst Pointer to source and destination image. c Constant by which each pixel is divided. c[i] contains the constant for channel i. shift Left 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 attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageDivConstShift(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageDivConstShift_Inp(3MLIB)

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