sunos man page for mlib_imagethresh4_fp

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			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       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_Inp(3MLIB), mlib_ImageThresh4_Inp(3MLIB), mlib_ImageThresh5(3MLIB), mlib_ImageThresh5_Fp(3MLIB),  mlib_ImageThresh5_Fp_Inp(3MLIB),
       mlib_ImageThresh5_Inp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				       mlib_ImageThresh4_Fp(3MLIB)