Manual Pages for UNIX Operating System command usage for man mlib_ImageThresh4_Fp_Inp

mediaLib Library Functions        mlib_ImageThresh4_Fp_Inp(3MLIB)



NAME
     mlib_ImageThresh4_Fp_Inp - image thresholding

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlib_status mlib_ImageThresh4_Fp_Inp(mlib_image *srcdst,
          const mlib_d64 *thigh, const mlib_d64 *tlow, const mlib_d64 *ghigh,
          const mlib_d64 *glow);


DESCRIPTION
     The mlib_ImageThresh4_Fp_Inp() 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:

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


PARAMETERS
     The function takes the following arguments:

     srcdst    Pointer to source and destination image.


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


     tlow      Low threshold value. tlow[i] holds the low  thres-
               hold 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.






SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions        mlib_ImageThresh4_Fp_Inp(3MLIB)



RETURN VALUES
     The function returns MLIB_SUCCESS if  successful.  Otherwise
     it returns MLIB_FAILURE.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_ImageThresh1(3MLIB),       mlib_ImageThresh1_Fp(3MLIB),
     mlib_ImageThresh1_Fp_Inp(3MLIB),
     mlib_ImageThresh1_Inp(3MLIB),      mlib_ImageThresh2(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_ImageThresh4_Fp(3MLIB),   mlib_ImageThresh4_Inp(3MLIB),
     mlib_ImageThresh5(3MLIB),       mlib_ImageThresh5_Fp(3MLIB),
     mlib_ImageThresh5_Fp_Inp(3MLIB),
     mlib_ImageThresh5_Inp(3MLIB), attributes(5)






















SunOS 5.11           Last change: 2 Mar 2007                    2