mlib_ImageThresh1_Fp(3MLIBmediaLib Library Functionmlib_ImageThresh1_Fp(3MLIB)NAMEmlib_ImageThresh1_Fp - image thresholding
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageThresh1_Fp(mlib_image *dst, const mlib_image *src,
const mlib_d64 *thresh, const mlib_d64 *ghigh, const mlib_d64 *glow);
DESCRIPTION
The mlib_ImageThresh1_Fp() function compares each pixel in the float‐
ing-point source image to a threshold value. If the pixel is less than
or equal to the threshold value, then the destination pixel is set to
the low output level. If the pixel is greater than the threshold value,
then the destination pixel is set to the high output level.
The data type of the destination image can be MLIB_BIT or can be the
same as the data type of the source image.
It uses the following equation:
dst[x][y][i] = glow[i] if src[x][y][i] ≤ thresh[i]
dst[x][y][i] = ghigh[i] if src[x][y][i] > thresh[i]
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image.
src Pointer to source image.
thresh Threshold value. thresh[i] contains the threshold for chan‐
nel i.
ghigh High output level. ghigh[i] contains the high output level
for channel i.
glow Low output level. glow[i] contains the low output level 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 ALSOmlib_ImageThresh1(3MLIB), mlib_ImageThresh1_Fp_Inp(3MLIB),
mlib_ImageThresh1_Inp(3MLIB), mlib_ImageThresh2(3MLIB), mlib_ImageTh‐
resh2_Fp(3MLIB), mlib_ImageThresh2_Fp_Inp(3MLIB), mlib_ImageTh‐
resh2_Inp(3MLIB), mlib_ImageThresh3(3MLIB), mlib_ImageTh‐
resh3_Fp(3MLIB), mlib_ImageThresh3_Fp_Inp(3MLIB), mlib_ImageTh‐
resh3_Inp(3MLIB), mlib_ImageThresh4(3MLIB), mlib_ImageTh‐
resh4_Fp(3MLIB), mlib_ImageThresh4_Fp_Inp(3MLIB), mlib_ImageTh‐
resh4_Inp(3MLIB), mlib_ImageThresh5(3MLIB), mlib_ImageTh‐
resh5_Fp(3MLIB), mlib_ImageThresh5_Fp_Inp(3MLIB), mlib_ImageTh‐
resh5_Inp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageThresh1_Fp(3MLIB)
