mlib_ImageZoomTranslateToGmediaLibBLibrarymlib_ImageZoomTranslateToGray(3MLIB)NAMEmlib_ImageZoomTranslateToGray - zoom, with translation, and convert to
grayscale
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageZoomTranslateToGray(mlib_image *dst,
const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy,
mlib_d64 tx, mlib_d64 ty, mlib_filter filter, mlib_edge edge,
const mlib_s32 *ghigh, const mlib_s32 *glow);
DESCRIPTION
The mlib_ImageZoomTranslateToGray() function will enlarge or minify the
source binary image by the X and Y zoom factors, with translation, and
convert the resulting image into a grayscale image.
It uses the following equation for coordinate mapping:
xd = zoomx*xs + tx
yd = zoomy*ys + ty
where a point with coordinates (xs, ys) in the source image is mapped
to a point with coordinates (xd, yd) in the destination image.
The width and height of the destination image can be different from the
width and height of the source image.
The center of the upper-left corner pixel of an image is located at
(0.5, 0.5).
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image. It must be of type MLIB_BYTE
and have just one channel.
src Pointer to source image. It must be of type MLIB_BIT and have
just one channel.
zoomx X zoom factor. zoomx > 0.
zoomy Y zoom factor. zoomy > 0.
tx X translation.
ty Y translation.
filter Type of resampling filter. It must be MLIB_NEAREST.
edge Type of edge condition. It can be one of the following:
MLIB_EDGE_DST_NO_WRITE
MLIB_EDGE_DST_FILL_ZERO
MLIB_EDGE_OP_NEAREST
MLIB_EDGE_SRC_EXTEND
MLIB_EDGE_SRC_PADDED
ghigh Pointer to value for '1' pixels in source image.
glow Pointer to value for '0' pixels in 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_ImageSubsampleBinaryToGray(3MLIB), attributes(5)SunOS 5.10 2 Mar 20mlib_ImageZoomTranslateToGray(3MLIB)
