
vmpp(1)                      Khoros                       vmpp(1)

PROGRAM
     vmpp - Compute 2-dimensional information from COMPLEX images

SYNTAX
     vmpp

     -i             input image

     -o             resulting output image

     [-k]           Type of information :
                    1 (magnitude),
                    2 (log of magnitude+1),
                    3 (power),
                    4 (log of power),
                    or 5 (phase)
                       [default = 2]

     [-V]           Gives the version for vmpp

     [-U]           Gives the usage for vmpp

     [-P]           Prompts for command line options

     [-A [file1]]   Creates the answer file called vmpp.ans or
                    file1

     [-a [file1]]   Uses vmpp.ans or file1 as the answer file

DESCRIPTION
     vmpp computes various representations of COMPLEX data.

     The output of vmpp is always of type FLOAT and must be
     scaled as necessary using vconvert(1) or vscale(1).

     The available information types (selected by the -k argu-
     ment) are:
       1 - Magnitude
       2 - Log(magnitude+1.0)
       3 - Power
       4 - Log(power+1.0)
       5 - Phase

REQUIRED ARGUMENTS
     -i     type: infile
            desc: input image

     -o     type: outfile
            desc: resulting output image

OPTIONAL ARGUMENTS
     -k     type: integer
            desc: Type of information
            allowed values:
            1 (magnitude),
            2 (log of magnitude+1),
            3 (power),
            4 (log of power),
            or 5 (phase)

EXAMPLES
     vfft -i1 feath.xv -o1 - | vmpp -i - -k 5 -o feath.phase

     computes the phase spectrum of image "feath.xv"

SEE ALSO
     intro(1), verror(3), vgparms(3), vutils(3), lvmpp(3)

RESTRICTIONS
     vmpp works only on single band COMPLEX images.

COPYRIGHT
     Copyright 1992, University of New Mexico.  All rights
     reserved.

Khoros                    Release: 1.0                          1

