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mlib_imagescale_fp(3mlib) [sunos man page]

mlib_ImageScale_Fp(3MLIB)				    mediaLib Library Functions					 mlib_ImageScale_Fp(3MLIB)

NAME
mlib_ImageScale_Fp - linear scaling SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageScale_Fp(mlib_image *dst, const mlib_image *src, const mlib_d64 *alpha, const mlib_d64 *beta); DESCRIPTION
The mlib_ImageScale_Fp() function performs a floating-point 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: dst[x][y][i] = src[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. See the following table for available variations of this linear scaling function. Type [*] BYTE SHORT USHORT INT FLOAT DOUBLE MLIB_FLOAT Y Y Y Y Y Y MLIB_DOUBLE Y Y Y Y Y Y [*] Each row represents a source data type. Each column represents a destination data type. PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source 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 |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageScale(3MLIB), mlib_ImageScale_Fp_Inp(3MLIB), mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB), mlib_ImageScale2_Inp(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageScale_Fp(3MLIB)

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mlib_ImageScale(3MLIB)					    mediaLib Library Functions					    mlib_ImageScale(3MLIB)

NAME
mlib_ImageScale - linear scaling SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageScale(mlib_image *dst, const mlib_image *src, const mlib_s32 *alpha, const mlib_s32 *beta, mlib_s32 shift); DESCRIPTION
The mlib_ImageScale() function performs a 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: dst[x][y][i] = src[x][y][i] * alpha[i] * 2**(-shift) + 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. See the following table for available variations of this linear scaling function. Type [*] BYTE SHORT USHORT INT FLOAT DOUBLE ---------------------------------------------------------------------------------------- MLIB_BYTE Y Y Y Y Y Y ---------------------------------------------------------------------------------------- MLIB_SHORT Y Y Y Y Y Y ---------------------------------------------------------------------------------------- MLIB_USHORT Y Y Y Y Y Y ---------------------------------------------------------------------------------------- MLIB_INT Y Y Y Y Y Y [*] Each row represents a source data type. Each column represents a destination data type. PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. alpha Scaling factor. alpha[i] contains the scaling factor for channel i. beta Offset value. beta[i] contains the offset for channel i. shift Right shifting factor. 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_Fp(3MLIB), mlib_ImageScale_Fp_Inp(3MLIB), mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB), mlib_ImageScale2_Inp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageScale(3MLIB)
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