Content-type: text/html Man page of mlib_ImageConstMulShift_Inp

mlib_ImageConstMulShift_Inp

Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
Index Return to Main Contents
 

NAME

mlib_ImageConstMulShift_Inp - multiply with a constant, with shifting  

SYNOPSIS

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

mlib_status mlib_ImageConstMulShift_Inp(mlib_image *srcdst,
    const mlib_s32 *c, mlib_s32 shift);

 

DESCRIPTION

The mlib_ImageConstMulShift_Inp() function multiplies each pixel in an image by a constant value on a pixel-by-pixel basis. It scales the result by a right shift and writes the result to the destination image on a pixel-by-pixel basis.

It uses the following equation:

srcdst[x][y][i] = c[i] * srcdst[x][y][i] * 2**(-shift)

 

PARAMETERS

The function takes the following arguments:

srcdst

Pointer to source and destination image.

c

Constant by which each pixel is multiplied. c[i] contains the constant for channel i.

shift

Right 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 TYPEATTRIBUTE VALUE

Interface StabilityCommitted

MT-Level

 

SEE ALSO

mlib_ImageConstMul(3MLIB), mlib_ImageConstMul_Fp(3MLIB), mlib_ImageConstMul_Fp_Inp(3MLIB), mlib_ImageConstMul_Inp(3MLIB), mlib_ImageConstMulShift(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

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Time: 02:38:02 GMT, October 02, 2010