mlib_ImageInvert(3MLIB) mediaLib Library Functions mlib_ImageInvert(3MLIB)NAMEmlib_ImageInvert - invert
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageInvert(mlib_image *dst, const mlib_image *src);
DESCRIPTION
The mlib_ImageInvert() function performs the inversion of an image such
that white becomes black, light gray becomes dark gray, and so on.
It uses the following equation:
dst[x][y][i] = (Gwhite + Gblack) - src[x][y][i]
The values of Gwhite and Gblack for different types of images are:
Image Type Gwhite Gblack Gwhite + Gblack
──────────────────────────────────────────────────────────────────
MLIB_BYTE 255 0 255 (0xFF)
MLIB_SHORT 32767 -32768-1 (0xFFFF)
──────────────────────────────────────────────────────────────────
MLIB_USHORT 65535 0 65535 (0xFFFF)
──────────────────────────────────────────────────────────────────
MLIB_INT 2147483647 -2147483648-1 (0xFFFFFFFF)
Given that integer data are in the two's complement representation,
mlib_ImageInvert() is the same as mlib_ImageNot(), while mlib_ImageIn‐
vert_Inp() is the same as mlib_ImageNot_Inp().
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image.
src Pointer to source image.
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 ALSOmlib_ImageInvert_Inp(3MLIB), mlib_ImageInvert_Fp(3MLIB), mlib_ImageIn‐
vert_Fp_Inp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageInvert(3MLIB)
