mlib_ImageZoomIndex(3MLIB)mediaLib Library Functionsmlib_ImageZoomIndex(3MLIB)NAMEmlib_ImageZoomIndex - zoom on color-indexed image
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageZoomIndex(mlib_image *dst, const mlib_image *src,
mlib_d64 zoomx, mlib_d64 zoomy, mlib_filter filter, mlib_edge edge,
const void *colormap);
DESCRIPTION
The mlib_ImageZoomIndex() function will enlarge or minify the source
image by the X and Y zoom factors. It uses the interpolation method as
described by the resampling filter.
The image data type must be MLIB_BYTE or MLIB_SHORT.
The center of the upper-left corner pixel of an image is located at
(0.5, 0.5).
The width and height of the destination image can be different from
those of the source image.
The center of the source image is mapped onto the center of the desti‐
nation image.
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image.
src Pointer to source image.
zoomx X zoom factor. zoomx > 0.0.
zoomy Y zoom factor. zoomy > 0.0.
filter Type of resampling filter. It can be one of the following:
MLIB_NEAREST
MLIB_BILINEAR
MLIB_BICUBIC
MLIB_BICUBIC2
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
colormap Internal data structure for inverse color mapping. This
data structure is generated by the mlib_ImageCol‐
orTrue2IndexInit() function.
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_ImageZoom(3MLIB), mlib_ImageZoom_Fp(3MLIB), mlib_Image‐
ZoomIn2X(3MLIB), mlib_ImageZoomIn2X_Fp(3MLIB), mlib_ImageZoomIn2XIn‐
dex(3MLIB), mlib_ImageZoomOut2X(3MLIB), mlib_ImageZoomOut2X_Fp(3MLIB),
mlib_ImageZoomOut2XIndex(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageZoomIndex(3MLIB)
