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OpenSolaris 2009.06 - man page for mlib_imagescale_fp_inp (opensolaris section 3mlib)

mlib_ImageScale_Fp_Inp(3MLIB)				    mediaLib Library Functions				     mlib_ImageScale_Fp_Inp(3MLIB)

NAME
mlib_ImageScale_Fp_Inp - linear scaling, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageScale_Fp_Inp(mlib_image *srcdst, const mlib_d64 *alpha, const mlib_d64 *beta);
DESCRIPTION
The mlib_ImageScale_Fp_Inp() function performs a floating-point, in-place linear scaling on the pixels of the source image by multiplying the data by a scale factor, shifting, and then adding an offset. 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_FLOAT or MLIB_DOUBLE.
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 |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+
SEE ALSO
mlib_ImageScale(3MLIB), mlib_ImageScale_Fp(3MLIB), mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB), mlib_ImageScale2_Inp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageScale_Fp_Inp(3MLIB)

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