## Linux and UNIX Man Pages

Test Your Knowledge in Computers #16
Difficulty: Easy
There are a total of 25 pins in the traditional parallel port of a computer system.
True or False?

# mlib_imagethresh5_fp(3mlib) [opensolaris man page]

```mlib_ImageThresh5_Fp(3MLIB)				    mediaLib Library Functions				       mlib_ImageThresh5_Fp(3MLIB)

NAME
mlib_ImageThresh5_Fp - image thresholding

SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_ImageThresh5_Fp(mlib_image *dst, const mlib_image *src,
const mlib_d64 *thigh, const mlib_d64 *tlow, const mlib_d64 *gray);

DESCRIPTION
The  mlib_ImageThresh5_Fp()  function  compares	each pixel in the source image to two threshold values, tlow and thigh. If the pixel is in
between the lower threshold value, tlow, and the higher threshold value, thigh, (inclusive on both sides), then the  destination  pixel	is
set to the value gray. Otherwise, the destination pixel is set to the value of the source pixel.

It uses the following equation:

dst[x][y][i] = src[x][y][i]  if src[x][y][i] < tlow[i]
dst[x][y][i] = gray[i]       if tlow[i] <= src[x][y][i] <= thigh[i]
dst[x][y][i] = src[x][y][i]  if src[x][y][i] > thigh[i]

PARAMETERS
The function takes the following arguments:

dst	Pointer to destination image.

src	Pointer to source image.

thigh	High threshold value. thigh[i] holds the high threshold for channel i.

tlow	Low threshold value. tlow[i] holds the low threshold for channel i.

gray	Output grayscale level. gray[i] holds the output grayscale 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			   |
+-----------------------------+-----------------------------+

mlib_ImageThresh1(3MLIB),   mlib_ImageThresh1_Fp(3MLIB),   mlib_ImageThresh1_Fp_Inp(3MLIB),   mlib_ImageThresh1_Inp(3MLIB),   mlib_ImageTh-
resh2(3MLIB),   mlib_ImageThresh2_Fp(3MLIB),   mlib_ImageThresh2_Fp_Inp(3MLIB),	 mlib_ImageThresh2_Inp(3MLIB),	 mlib_ImageThresh3(3MLIB),
mlib_ImageThresh3_Fp(3MLIB),   mlib_ImageThresh3_Fp_Inp(3MLIB),	 mlib_ImageThresh3_Inp(3MLIB),	 mlib_ImageThresh4(3MLIB),   mlib_ImageTh-
resh4_Fp(3MLIB), mlib_ImageThresh4_Fp_Inp(3MLIB), mlib_ImageThresh4_Inp(3MLIB), mlib_ImageThresh5(3MLIB),  mlib_ImageThresh5_Fp_Inp(3MLIB),
mlib_ImageThresh5_Inp(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007					       mlib_ImageThresh5_Fp(3MLIB)```

## Check Out this Related Man Page

```mlib_ImageThresh4_Fp(3MLIB)				    mediaLib Library Functions				       mlib_ImageThresh4_Fp(3MLIB)

NAME
mlib_ImageThresh4_Fp - image thresholding

SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status  mlib_ImageThresh4_Fp(mlib_image  *dst,  const  mlib_image  *src,  const  mlib_d64 *thigh, const mlib_d64 *tlow, const mlib_d64
*ghigh, const mlib_d64 *glow);

DESCRIPTION
The mlib_ImageThresh4_Fp() function compares each pixel in the source image to two threshold values, tlow and thigh. If the pixel  is  less
than  the  lower threshold value, tlow, then the destination pixel is set to the lower output level, glow. If the pixel is greater than the
higher threshold value, thigh, then the destination pixel is set to the higher output level, ghigh. Otherwise, the destination pixel is set
to the value of the source pixel.

It uses the following equation:

dst[x][y][i] = glow[i]	    if src[x][y][i] < tlow[i]
dst[x][y][i] = src[x][y][i]  if tlow[i] <= src[x][y][i] <= thigh[i]
dst[x][y][i] = ghigh[i]	    if src[x][y][i] > thigh[i]

PARAMETERS
The function takes the following arguments:

dst	       Pointer to destination image.

src	       Pointer to source image.

thigh	       High threshold value.  thigh[i] holds the high threshold for channel i.

tlow	       Low threshold value.  tlow[i] holds the low threshold for channel i.

ghigh	       High output grayscale level.  ghigh[i] holds the high output grayscale level for channel i.

glow	       Low output grayscale level.  glow[i] holds the low output grayscale 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	     |Evolving			   |
+-----------------------------+-----------------------------+
|MT-Level		     |MT-Safe			   |
+-----------------------------+-----------------------------+