sunos man page for mlib_imageconstdivshift

mlib_ImageConstDivShift(3MLIB)				    mediaLib Library Functions				    mlib_ImageConstDivShift(3MLIB)

NAME
       mlib_ImageConstDivShift - division into a constant, with shifting

SYNOPSIS
       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageConstDivShift(mlib_image *dst, const mlib_image *src, const mlib_s32 *c, mlib_s32 shift);

DESCRIPTION
       The mlib_ImageConstDivShift() function divides each pixel in an image into a constant value 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:

       dst[x][y][i] = c[i] / src[x][y][i] * 2**shift

       In the case of src[x][y][i] = 0,

       dst[x][y][i] = 0 	     if c[i] = 0
       dst[x][y][i] = DATA_TYPE_MAX  if c[i] > 0
       dst[x][y][i] = DATA_TYPE_MIN  if c[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:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       c	       Constant into 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_ImageConstDiv(3MLIB),  mlib_ImageConstDiv_Fp(3MLIB), mlib_ImageConstDiv_Fp_Inp(3MLIB), mlib_ImageConstDiv_Inp(3MLIB), mlib_ImageConst-
       DivShift_Inp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				    mlib_ImageConstDivShift(3MLIB)