mediaLib Library Functions            mlibImageScale2Inp(3MLIB)



NAME
     mlibImageScale2Inp - linear scaling, in place

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

     mlibstatus mlibImageScale2Inp(mlibimage *srcdst, const mlibd64 *alpha,
          const mlibd64 *beta);


DESCRIPTION
     The mlibImageScale2Inp()  function  performs  an  in-place
     linear  scaling  on the pixels of the source image by multi-
     plying the data by a scale factor and then adding an offset.
     Images can have 1, 2, 3, or 4 channels.


     The following equation is used:

       srcdst[x][y][i] = srcdst[x][y][i] * alpha[i] ] beta[i]



     If the result  of  the  operation  underflows/overflows  the
     minimum/maximum  value  supported  by the destination image,
     then it will be clamped to the minimum/maximum value respec-
     tively.


     The image can be of type MLIBYTE, MLIBSHORT,  MLIBUSHORT
     or MLIBINT.

PARAMETERS
     The function takes the following arguments:

     srcdst    Pointer to source and destination image.


     alpha     Scaling factor. alpha[i] contains the scaling fac-
               tor for channel i.


     beta      Offset value.  beta[i]  contains  the  offset  for
               channel i.


RETURN VALUES
     The function returns MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.





SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions            mlibImageScale2Inp(3MLIB)



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



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibImageScale(3MLIB),           mlibImageScaleFp(3MLIB),
     mlibImageScaleFpInp(3MLIB),   mlibImageScaleInp(3MLIB),
     mlibImageScale2(3MLIB), attributes(5)




































SunOS 5.11           Last change: 2 Mar 2007                    2