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 argument) 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.