Manual Pages for UNIX Operating System command usage for man mlib_ImageExtrema2

mediaLib Library Functions              mlib_ImageExtrema2(3MLIB)



NAME
     mlib_ImageExtrema2, mlib_ImageExtrema2_Fp - image extrema

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

     mlib_status mlib_ImageExtrema2(mlib_s32 *min, mlib_s32 *max,
          const mlib_image *img, mlib_s32 xStart, mlib_s32 yStart,
          mlib_s32 xPeriod, mlib_s32 yPeriod);


     mlib_status mlib_ImageExtrema2_Fp(mlib_d64 *min, mlib_d64 *max,
          const mlib_image *img, mlib_s32 xStart, mlib_s32 yStart,
          mlib_s32 xPeriod, mlib_s32 yPeriod);


DESCRIPTION
     Each of the functions determines the extrema values for each
     channel in an image, possibly with subsampling.


     It uses the following equation:

       min[i] = MIN{ img[x][y][i] }
       max[i] = MAX{ img[x][y][i] }



     where

       x = xStart + p*xPeriod;  0 < p < (w - xStart)/xPeriod
       y = yStart + q*yPeriod;  0 < q < (h - yStart)/yPeriod


PARAMETERS
     Each of the functions takes the following arguments:

     min        Pointer to minimum vector, where  length  is  the
                number  of channels in the image. min[i] contains
                the minimum of channel i.


     max        Pointer to maximum vector, where  length  is  the
                number  of channels in the image. max[i] contains
                the maximum of channel i.


     img        Pointer to a source image.






SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions              mlib_ImageExtrema2(3MLIB)



     xStart     Initial X sample coordinate.


     yStart     Initial Y sample coordinate.


     xPeriod     X sample rate. xPeriod > 1.


     yPeriod     Y sample rate. yPeriod > 1.


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_ImageExtremaLocations(3MLIB), mlib_ImageMaximum(3MLIB),
     mlib_ImageMaximum_Fp(3MLIB),       mlib_ImageMinimum(3MLIB),
     mlib_ImageMinimum_Fp(3MLIB), attributes(5)




















SunOS 5.11           Last change: 2 Mar 2007                    2