
vexp(1)                      Khoros                       vexp(1)

PROGRAM
     vexp - Compute the base 10 antilogarithm of an image with an
     operation gating image.

SYNTAX
     vexp

     -i             input image

     -o             resulting output image

     [-m]           add operation masking image

     [-t]           Do not subtract 1 from result [False] Sub-
                    tract 1 from result [True]

     [-V]           Gives the version for vexp

     [-U]           Gives the usage for vexp

     [-P]           Prompts for command line options

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

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

DESCRIPTION
     vexp computes the antilogarithm of an image pixel by pixel
     with an operation gating image.  The antilogarithm is the
     same as 10 raised to the value of the image pixel, exp10(x).

     The optional mask image must be of the same data storage
     type and size as the input image, and is used to gate the
     operation. A non-zero mask pixel enables the output pixel to
     contain the exp10(x). A zero mask pixel just transfers the
     value of the corresponding pixel in the input image to the
     output image.

REQUIRED ARGUMENTS
     -i     type: infile
            desc: input image

     -o     type: outfile
            desc: resulting output image

OPTIONAL ARGUMENTS
     -m     type: infile
            desc: add operation masking image

     -t     type: boolean
            desc: Do not subtract 1 from result [False] Subtract
            1 from result [True]
            default: true

EXAMPLES
     vexp -i input.image -o output.image -m mask.image -t 0

     This performs a bitwise exponential on input.image, uses
     masking image mask.image, and places the result in
     output.image.  The -t 0 indicates that 1 will not be sub-
     tracted from the result of the exponent.

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

RESTRICTIONS
     vexp will not operate on:
          Complex, and Bit
     data storage types.

COPYRIGHT
     Copyright 1991, University of New Mexico.  All rights
     reserved.

Khoros                    Release: 1.0                          1

